├── .github ├── dependabot.yml └── workflows │ ├── go-windows.yml │ ├── go.yml │ ├── golangci-lint.yml │ └── goreleaser.yml ├── .gitignore ├── .golangci.yml ├── .goreleaser.yml ├── COPYING ├── Makefile ├── README.md ├── TESTING.md ├── check.go ├── check_test.go ├── go.mod ├── go.sum ├── icinga2 ├── command.conf └── example.conf ├── main.go └── version.go /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | updates: 3 | - package-ecosystem: gomod 4 | directory: "/" 5 | schedule: 6 | interval: weekly 7 | time: '10:00' 8 | open-pull-requests-limit: 10 9 | 10 | - package-ecosystem: "github-actions" 11 | directory: "/" 12 | schedule: 13 | interval: monthly 14 | -------------------------------------------------------------------------------- /.github/workflows/go-windows.yml: -------------------------------------------------------------------------------- 1 | name: Go Windows 2 | on: 3 | push: 4 | tags: 5 | - v* 6 | branches: 7 | - master 8 | pull_request: {} 9 | 10 | jobs: 11 | build: 12 | name: Integration Test 13 | runs-on: windows-latest 14 | 15 | steps: 16 | - name: Check out code 17 | uses: actions/checkout@v4 18 | 19 | - name: Build the program 20 | run: go build 21 | 22 | - name: Prepare WinRM on localhost 23 | env: 24 | TEST_USER_NAME: ci-test 25 | TEST_USER_PASSWORD: foobar123.lang! # only used inside the CI run 26 | WINRM_TLS_PORT: 5987 27 | run: | 28 | Write-Output "User name is: $Env:TEST_USER_NAME" 29 | $pw = ConvertTo-SecureString -String $env:TEST_USER_PASSWORD -AsPlainText -Force 30 | $cred = New-Object System.Management.Automation.PSCredential -ArgumentList $env:TEST_USER_NAME, $pw 31 | 32 | New-LocalUser -Name $env:TEST_USER_NAME -Password $pw -Description "GitHub Action Test User" 33 | Add-LocalGroupMember -Group Administrators -Member $env:TEST_USER_NAME 34 | 35 | winrm quickconfig -force 36 | winrm set winrm/config/service/Auth '@{Basic="true"}' 37 | winrm set winrm/config/service '@{AllowUnencrypted="true"}' 38 | winrm set winrm/config/winrs '@{MaxMemoryPerShellMB="1024"}' 39 | 40 | $cert = New-SelfSignedCertificate -TextExtension @("2.5.29.17={text}DNS=localhost&IPAddress=127.0.0.1&IPAddress=::1") -CertStoreLocation "cert:\LocalMachine\My" 41 | # & Export-Certificate -Cert $cert -FilePath C:\cert 42 | New-Item -Path WSMan:\LocalHost\Listener -Transport HTTPS -Address "IP:::1" -Port $env:WINRM_TLS_PORT -CertificateThumbPrint $cert.Thumbprint -force 43 | 44 | winrm enumerate winrm/config/listener 45 | 46 | 47 | - name: Restart WinRM and test it locally 48 | env: 49 | TEST_USER_NAME: ci-test 50 | TEST_USER_PASSWORD: foobar123.lang! # only used inside the CI run 51 | WINRM_TLS_PORT: 5987 52 | run: | 53 | Restart-Service winrm 54 | 55 | $pw = ConvertTo-SecureString -String $env:TEST_USER_PASSWORD -AsPlainText -Force 56 | $cred = New-Object System.Management.Automation.PSCredential -ArgumentList $env:TEST_USER_NAME, $pw 57 | 58 | Test-WSMan -Computername localhost -Credential $cred -Authentication Negotiate 59 | 60 | - name: Go Test 61 | env: 62 | WINRM_HOST: ::1 63 | WINRM_USER: ci-test 64 | WINRM_BASIC_USER: ci-test 65 | WINRM_PASSWORD: foobar123.lang! # only used inside the CI run 66 | WINRM_BASIC_PASSWORD: foobar123.lang! # only used inside the CI run 67 | WINRM_INSECURE: 1 68 | WINRM_TLS_PORT: 5987 69 | 70 | run: go test -v ./... 71 | -------------------------------------------------------------------------------- /.github/workflows/go.yml: -------------------------------------------------------------------------------- 1 | name: Go 2 | on: 3 | push: 4 | tags: 5 | - v* 6 | branches: 7 | - master 8 | pull_request: {} 9 | 10 | jobs: 11 | build: 12 | name: Build 13 | runs-on: ubuntu-latest 14 | 15 | strategy: 16 | matrix: 17 | go: [ '1.21', '1.23' ] 18 | 19 | steps: 20 | - name: Set up Go ${{ matrix.go }} 21 | uses: actions/setup-go@v5 22 | with: 23 | go-version: ${{ matrix.go }} 24 | id: go 25 | 26 | - name: Check out code into the Go module directory 27 | uses: actions/checkout@v4 28 | 29 | - name: Go Test 30 | run: make test 31 | 32 | - name: Go Build 33 | run: make build 34 | 35 | # - name: Upload artifact 36 | # uses: actions/upload-artifact@v1.0.0 37 | # with: 38 | # name: check_by_powershell-go${{ matrix.go }} 39 | # path: build 40 | -------------------------------------------------------------------------------- /.github/workflows/golangci-lint.yml: -------------------------------------------------------------------------------- 1 | name: golangci-lint 2 | on: 3 | push: 4 | tags: 5 | - v* 6 | branches: 7 | - master 8 | pull_request: 9 | 10 | jobs: 11 | golangci: 12 | name: lint 13 | runs-on: ubuntu-latest 14 | steps: 15 | - uses: actions/checkout@v4 16 | 17 | - name: golangci-lint 18 | uses: golangci/golangci-lint-action@v7 19 | with: 20 | version: v2.0.2 21 | 22 | - name: Go mod tidy 23 | run: | 24 | go mod tidy 25 | git diff --exit-code go.sum 26 | -------------------------------------------------------------------------------- /.github/workflows/goreleaser.yml: -------------------------------------------------------------------------------- 1 | name: goreleaser 2 | 3 | on: 4 | push: 5 | tags: 6 | - 'v*' 7 | 8 | jobs: 9 | goreleaser: 10 | runs-on: ubuntu-latest 11 | steps: 12 | - 13 | name: Checkout 14 | uses: actions/checkout@v4 15 | with: 16 | fetch-depth: 0 17 | - 18 | name: Set up Go 19 | uses: actions/setup-go@v5 20 | with: 21 | go-version: 1.15 22 | - 23 | name: Run GoReleaser 24 | uses: goreleaser/goreleaser-action@v6 25 | with: 26 | version: latest 27 | args: release --rm-dist 28 | env: 29 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 30 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .*.sw[opa] 2 | *~ 3 | /build/ 4 | /dist/ 5 | check_by_* 6 | .env* 7 | .idea/* 8 | -------------------------------------------------------------------------------- /.golangci.yml: -------------------------------------------------------------------------------- 1 | version: "2" 2 | linters: 3 | enable: 4 | - asasalint 5 | - asciicheck 6 | - bidichk 7 | - dogsled 8 | - dupl 9 | - durationcheck 10 | - errchkjson 11 | - errorlint 12 | - exhaustive 13 | - gocheckcompilerdirectives 14 | - gochecksumtype 15 | - gosec 16 | - gosmopolitan 17 | - loggercheck 18 | - makezero 19 | - nilnesserr 20 | - protogetter 21 | - reassign 22 | - recvcheck 23 | - spancheck 24 | - testifylint 25 | - whitespace 26 | - wsl 27 | - zerologlint 28 | disable: 29 | - bodyclose 30 | - contextcheck 31 | - funlen 32 | - musttag 33 | - nilerr 34 | - noctx 35 | - rowserrcheck 36 | - sqlclosecheck 37 | - unparam 38 | exclusions: 39 | generated: lax 40 | presets: 41 | - comments 42 | - common-false-positives 43 | - legacy 44 | - std-error-handling 45 | paths: 46 | - (.+)_test\.go 47 | - internal/config/http_config.go 48 | - internal/config/config.go 49 | - third_party$ 50 | - builtin$ 51 | - examples$ 52 | formatters: 53 | exclusions: 54 | generated: lax 55 | paths: 56 | - third_party$ 57 | - builtin$ 58 | - examples$ 59 | -------------------------------------------------------------------------------- /.goreleaser.yml: -------------------------------------------------------------------------------- 1 | # See documentation at https://goreleaser.com 2 | version: 2 3 | before: 4 | hooks: 5 | - go mod download 6 | builds: 7 | - goos: 8 | - linux 9 | - windows 10 | - darwin 11 | env: 12 | - CGO_ENABLED=0 13 | release: 14 | github: 15 | owner: Icinga 16 | name: check_by_powershell 17 | archives: 18 | - format: binary 19 | checksum: 20 | name_template: 'checksums.txt' 21 | snapshot: 22 | name_template: '{{ .Tag }}-SNAPSHOT-{{.ShortCommit}}' 23 | changelog: 24 | sort: asc 25 | filters: 26 | exclude: 27 | - '^docs:' 28 | - '^test:' 29 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | GIT_COMMIT := $(shell git rev-list -1 HEAD) 2 | DATE := $(shell date --iso-8601=seconds) 3 | GO_BUILD := go build -v -ldflags "-X main.commit=$(GIT_COMMIT) -X main.date=$(DATE) -X main.builtBy=make" 4 | 5 | NAME = check_by_powershell 6 | 7 | .PHONY: all clean build test 8 | 9 | all: build test 10 | 11 | distclean: clean 12 | clean: 13 | rm -rf build/ 14 | 15 | build: 16 | mkdir -p build 17 | GOOS=linux GOARCH=amd64 $(GO_BUILD) -o build/$(NAME)-linux-amd64 . 18 | GOOS=linux GOARCH=386 $(GO_BUILD) -o build/$(NAME)-linux-i386 . 19 | GOOS=windows GOARCH=amd64 $(GO_BUILD) -o build/$(NAME)-windows-amd64.exe . 20 | GOOS=darwin GOARCH=amd64 $(GO_BUILD) -o build/$(NAME)-darwin-amd64 . 21 | 22 | test: 23 | go test -v ./... 24 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # check_by_powershell 2 | 3 | 4 | 5 | Icinga check plugin to run checks and other commands directly on any Windows system using 6 | WinRM (Windows Remote Management) and Powershell. 7 | 8 | Main use case would be to call one of the [plugins](https://github.com/Icinga/icinga-powershell-plugins) 9 | from the [Icinga Powershell Framework](https://github.com/Icinga/icinga-powershell-framework). This will avoid the 10 | requirement of installing an Icinga 2 agent on every Windows system. 11 | 12 | The plugin will require WinRM to be preconfigured for access with a HTTPs or HTTP connection. 13 | 14 | Supported authentication methods: 15 | 16 | * Basic with local users 17 | * NTLM with local or AD accounts 18 | * TLS client certificate 19 | * (SSH connection) 20 | 21 | Not supported at the moment is Kerberos. 22 | 23 | ## Usage 24 | 25 | ``` 26 | Arguments: 27 | -H, --host string Host name, IP Address of the remote host (default "127.0.0.1") 28 | -p, --port int Port number WinRM 29 | -U, --user string Username of the remote host 30 | -P, --password string Password of the user 31 | -k, --insecure Don't verify the hostname on the returned certificate 32 | --no-tls Don't use a TLS connection, use the HTTP protocol 33 | --ca string CA certificate 34 | --cert string Client certificate 35 | --key string Client Key 36 | --cmd string Command to execute on the remote machine 37 | --icingacmd string Executes commands of Icinga PowerShell Framework (e.g. Invoke-IcingaCheckCPU) 38 | --auth string Authentication mechanism - NTLM | SSH (default "basic") 39 | --sshhost string SSH Host (mandatory if --auth=SSH) 40 | --sshuser string SSH Username (mandatory if --auth=SSH) 41 | --sshpassword string SSH Password (mandatory if --auth=SSH) 42 | -t, --timeout int Abort the check after n seconds (default 10) 43 | -d, --debug Enable debug mode 44 | -v, --verbose Enable verbose mode 45 | -V, --version Print version and exit 46 | ``` 47 | 48 | Also, see the Icinga 2 examples in the [icinga2/ directory](icinga2/). 49 | 50 | ## Examples 51 | 52 | Calling a PowerShell plugin from the framework is easy: 53 | 54 | ./check_by_powershell -H example.local.de --user 'ad\user' --password '!secret!pw' \ 55 | --icingacmd 'Invoke-IcingaCheckCPU -Warning 80 -Critical 90' 56 | 57 | [OK] Check package "CPU Load" 58 | | 'core_23_10'=2.31%;;;0;100 'core_23_3'=2.54%;;;0;100 'core_23_15'=2.12%;;;0;100 'core_23_5'=2.39%;;;0;100 59 | 'core_23_1'=2.04%;;;0;100 'core_23'=1.93%;;;0;100 'core_2_15'=2.78%;;;0;100 'core_2_10'=2.89%;;;0;100 [...] 60 | 61 | Notes: 62 | * You can use `--insecure` to skip CA trust and certificate checks - be careful! 63 | * You can use `--no-tls` to use a HTTP connection 64 | 65 | Executing any other Windows program or script, could be another Icinga plugin: 66 | 67 | ./check_by_powershell -H 192.168.172.217 \ 68 | --user 'windowsuser' --password 'secret!pw' \ 69 | --cmd "cscript.exe /T:30 /NoLogo C:\Windows\system32\check_time.vbs 1.de.pool.ntp.org 20 240" 70 | 71 | OK - NTP OK: Offset +0.0556797 secs|'offset'=+0.0556797s;20;240; 72 | 73 | If you run a program or script like this, you need to make sure to exit the script with a proper exit code, to reflect 74 | the correct status for Icinga. 75 | 76 | ## Preparing the Windows machine 77 | 78 | By default, WinRM is not enabled, and if enabled, will only allow Kerberos authentication. WinRM can be configured in 79 | many ways, to allow connections by HTTP or HTTPs. 80 | 81 | Best practice would be to configure WinRM with a TLS certificate, signed by the PKI of the Active Directory domain, 82 | and using NTLM auth to access the systems. 83 | 84 | Anything you configure via cmd or powershell needs to be run from an administrative shell. 85 | 86 | We start with the minimal setup of enabling WinRM and raising the memory limit: 87 | 88 | ``` 89 | winrm quickconfig 90 | winrm set winrm/config/winrs '@{MaxMemoryPerShellMB="1024"}' 91 | ``` 92 | 93 | ### Setting up a HTTPS / TLS listener 94 | 95 | Make sure to install the certificate in the local machine cert store. This example is using PowerShell. 96 | 97 | WinRM HTTPS requires a local computer "Server Authentication" certificate with a CN matching the hostname, that is not 98 | expired, revoked, or self-signed to be installed. 99 | 100 | ```powershell 101 | # Find the cert 102 | Get-ChildItem -Path cert:\LocalMachine\My -Recurse; 103 | 104 | # Put the thumbprint here or script it otherwise 105 | $CertThumbprint = 'cert_thumbprint'; 106 | 107 | # Allow PS-Remote configuration 108 | Enable-PSRemoting -SkipNetworkProfileCheck -Force; 109 | 110 | # (optional) Disable HTTP transport for PS-Remoting to ensure encryption 111 | Get-ChildItem WSMan:\Localhost\listener | Where-Object Keys -eq "Transport=HTTP" | Remove-Item -Recurse; 112 | 113 | # Set the HTTPS Transport with our provided Thumbprint for the SSL certificate 114 | New-Item -Path WSMan:\LocalHost\Listener -Transport HTTPS -Address * -CertificateThumbPrint $CertThumbprint -Force; 115 | 116 | # Set Firewall Rule for allowing communication 117 | New-NetFirewallRule -DisplayName "Windows Remote Management (HTTPS-In)" ` 118 | -Name "Windows Remote Management (HTTPS-In)" -Profile Any -LocalPort 5986 -Protocol TCP; 119 | 120 | # Enable the HTTPS listener 121 | Set-Item WSMan:\localhost\Service\EnableCompatibilityHttpsListener -Value true; 122 | 123 | # Disable possible old HTTP firewall rules (names language specific) 124 | Disable-NetFirewallRule -DisplayName "Windows Remote Management (HTTP-In)"; 125 | Disable-NetFirewallRule -DisplayName "Windows-Remoteverwaltung (HTTP eingehend)"; 126 | 127 | # (optional) You can configure hosts that are allowed to connect to WinRM 128 | winrm set winrm/config/client '@{TrustedHosts="*"}'; 129 | 130 | Restart-Service winrm; 131 | ``` 132 | 133 | If it's necessary to use a self-signed-certificate, you can follow the 134 | [guide on visualstudiogeeks.com](https://www.visualstudiogeeks.com/devops/how-to-configure-winrm-for-https-manually). 135 | 136 | ### Enabling Basic Auth 137 | 138 | Basic auth can be used as fallback for NTLM, but will require a local account on each machine. 139 | 140 | ``` 141 | winrm set winrm/config/service/Auth '@{Basic="true"}' 142 | ``` 143 | 144 | ### Enabling unencrypted HTTP or basic auth 145 | 146 | **Warning:** This is insecure, and should only be done during testing! 147 | 148 | This will allow credentials and data transmitted over an **unencrypted** connection like HTTP. 149 | 150 | ``` 151 | winrm set winrm/config/service '@{AllowUnencrypted="true"}' 152 | ``` 153 | 154 | ## Manually building the program 155 | 156 | The plugin is written in Golang and can easily be compiled from source, see the [documentation](https://golang.org/doc/) 157 | for further details. 158 | 159 | ``` 160 | GOOS=linux GOARCH=amd64 go build -o check_by_powershell . 161 | GOOS=windows GOARCH=amd64 go build -o check_by_powershell.exe . 162 | ``` 163 | 164 | ## Acknowledgements 165 | 166 | To Brice Figureau [@masterzen](https://github.com/masterzen), who built a 167 | [WinRM client for golang](https://github.com/masterzen/winrm). 168 | 169 | ## License 170 | 171 | Copyright (c) 2020 [Icinga GmbH](mailto:info@icinga.com) 172 | 173 | This program is free software: you can redistribute it and/or modify 174 | it under the terms of the GNU General Public License as published by 175 | the Free Software Foundation, either version 3 of the License, or 176 | (at your option) any later version. 177 | 178 | This program is distributed in the hope that it will be useful, 179 | but WITHOUT ANY WARRANTY; without even the implied warranty of 180 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 181 | GNU General Public License for more details. 182 | 183 | You should have received a copy of the GNU General Public License 184 | along with this program. If not, see [gnu.org/licenses](https://www.gnu.org/licenses/). 185 | -------------------------------------------------------------------------------- /TESTING.md: -------------------------------------------------------------------------------- 1 | Instructions for testing 2 | ======================== 3 | 4 | This check implements testing via go test, which can be easily run like: 5 | 6 | ``` 7 | go test -v ./... 8 | ``` 9 | 10 | ## Integration testing 11 | 12 | Some testing requires a real WinRM host to test against, this can be enabled by using environment variables. 13 | 14 | On a Unix/Linux shell: 15 | 16 | ```bash 17 | export WINRM_HOST=win10 18 | export WINRM_USER=administrator 19 | export WINRM_PASSWORD=secret 20 | ``` 21 | 22 | On PowerShell: 23 | 24 | ```powershell 25 | $Env:WINRM_HOST = "win10" 26 | $Env:WINRM_USER = "administrator" 27 | $Env:WINRM_PASSWORD = "secret" 28 | ``` 29 | 30 | With the vars set, just run the normal test command, and no tests should be skipped. 31 | 32 | ``` 33 | go test -v ./... 34 | ``` 35 | 36 | Other vars have some additional behavior, that can be overridden, set or enabled: 37 | 38 | * `WINRM_BASIC_USER` Use a different user for Basic Auth 39 | * `WINRM_BASIC_PASSWORD` Use a different password for Basic Auth 40 | * `WINRM_NTLM_USER` Use a different user for NTLM 41 | * `WINRM_NTLM_PASSWORD` Use a different password for NTLM 42 | * `WINRM_SKIP_TLS` If set, don't run checks via a TLS/HTTPS connection 43 | * `WINRM_SKIP_BASIC` If set, don't test basic auth 44 | * `WINRM_SKIP_UNENCRYPTED` If set, don't test HTTP connections 45 | * `WINRM_INSECURE` If set, disable certificate validation 46 | * `WINRM_TLS_CA` Path for a CA certificate to use 47 | * `WINRM_TLS_CERT` Path for a client certificate to use 48 | * `WINRM_TLS_KEY` Path for a client certificate key to use 49 | -------------------------------------------------------------------------------- /check.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bytes" 5 | "context" 6 | "errors" 7 | "fmt" 8 | "os" 9 | "strings" 10 | "time" 11 | 12 | "github.com/masterzen/winrm" 13 | log "github.com/sirupsen/logrus" 14 | "github.com/spf13/pflag" 15 | "golang.org/x/crypto/ssh" 16 | ) 17 | 18 | const ( 19 | Port = 5985 20 | TlsPort = 5986 21 | AuthDefault = AuthNTLM 22 | AuthBasic = "basic" 23 | AuthNTLM = "ntlm" 24 | AuthSSH = "ssh" 25 | AuthTLS = "tls" 26 | ) 27 | 28 | type Config struct { 29 | Host string 30 | Port int 31 | User string 32 | Password string 33 | NoTls bool 34 | Insecure bool 35 | TlsCAPath string 36 | tlsCA []byte 37 | TlsCertPath string 38 | tlsCert []byte 39 | TlsKeyPath string 40 | tlsKey []byte 41 | Command string 42 | IcingaCommand string 43 | AuthType string 44 | SSHHost string 45 | SSHUser string 46 | SSHPassword string 47 | validated bool 48 | } 49 | 50 | func BuildConfigFlags(fs *pflag.FlagSet) (config *Config) { 51 | config = &Config{} 52 | 53 | fs.StringVarP(&config.Host, "host", "H", "127.0.0.1", 54 | "Host name, IP Address of the remote host") 55 | fs.IntVarP(&config.Port, "port", "p", 0, "Port number WinRM") // TODO: document default 56 | 57 | fs.StringVarP(&config.User, "user", "U", "", "Username of the remote host") 58 | fs.StringVarP(&config.Password, "password", "P", "", "Password of the user") 59 | 60 | fs.BoolVarP(&config.Insecure, "insecure", "k", false, 61 | "Don't verify the hostname on the returned certificate") 62 | fs.BoolVar(&config.NoTls, "no-tls", false, "Don't use a TLS connection, use the HTTP protocol") 63 | fs.StringVar(&config.TlsCAPath, "ca", "", "CA certificate") 64 | fs.StringVar(&config.TlsCertPath, "cert", "", "Client certificate") 65 | fs.StringVar(&config.TlsKeyPath, "key", "", "Client Key") 66 | 67 | fs.StringVar(&config.Command, "cmd", "", "Command to execute on the remote machine") 68 | fs.StringVar(&config.IcingaCommand, "icingacmd", "", 69 | "Executes commands of Icinga PowerShell Framework (e.g. Invoke-IcingaCheckCPU)") 70 | 71 | fs.StringVar(&config.AuthType, "auth", AuthDefault, "Authentication mechanism - Basic, NTLM, TLS, SSH") 72 | 73 | // AuthSSH 74 | fs.StringVar(&config.SSHHost, "sshhost", "", "SSH Host (mandatory if --auth=SSH)") 75 | fs.StringVar(&config.SSHUser, "sshuser", "", "SSH Username (mandatory if --auth=SSH)") 76 | fs.StringVar(&config.SSHPassword, "sshpassword", "", "SSH Password (mandatory if --auth=SSH)") 77 | 78 | // Compat flags 79 | // TODO: remove? 80 | fs.BoolVarP(&config.Insecure, "unsecure", "u", false, 81 | "Don't verify the hostname on the returned certificate") 82 | 83 | _ = fs.MarkHidden("unsecure") 84 | 85 | return 86 | } 87 | 88 | // Validate ensures the configuration is valid, and will set and evaluate some settings 89 | func (c *Config) Validate() (err error) { 90 | c.validated = false 91 | 92 | if c.Host == "" { 93 | return errors.New("host must be configured") 94 | } 95 | 96 | // Any commands? 97 | if c.Command == "" && c.IcingaCommand == "" { 98 | return errors.New("no command specified") 99 | } else if c.Command != "" && c.IcingaCommand != "" { 100 | return errors.New("you can only use command OR icingacommand") 101 | } 102 | 103 | // Set default port if unset 104 | if c.Port < 1 { 105 | c.Port = TlsPort 106 | if c.NoTls { 107 | c.Port = Port 108 | } 109 | } 110 | 111 | if c.TlsCertPath != "" { 112 | c.tlsCert, err = os.ReadFile(c.TlsCertPath) 113 | if err != nil { 114 | return fmt.Errorf("could not read certificate: %w", err) 115 | } 116 | 117 | if c.TlsKeyPath == "" { 118 | return errors.New("please specify certificate key when tls is enabled") 119 | } 120 | 121 | c.tlsKey, err = os.ReadFile(c.TlsKeyPath) 122 | if err != nil { 123 | return fmt.Errorf("could not read certificate key: %w", err) 124 | } 125 | 126 | if c.AuthType == "" { 127 | c.AuthType = AuthTLS 128 | } else { 129 | log.Warnf("auth type is %s, but TLS certificates are supplied", c.AuthType) 130 | } 131 | } 132 | 133 | if c.TlsCAPath != "" { 134 | c.tlsCA, err = os.ReadFile(c.TlsCAPath) 135 | if err != nil { 136 | return fmt.Errorf("could not read CA file: %w", err) 137 | } 138 | } 139 | 140 | // AuthType 141 | if c.AuthType == "" { 142 | c.AuthType = AuthDefault 143 | } 144 | 145 | auth := strings.ToLower(c.AuthType) 146 | switch auth { 147 | case AuthBasic, AuthNTLM: 148 | if c.User == "" || c.Password == "" { 149 | return errors.New("user and password must be configured") 150 | } 151 | case AuthTLS: 152 | case AuthSSH: 153 | if c.SSHHost == "" || c.SSHUser == "" || c.SSHPassword == "" { 154 | return fmt.Errorf("please specify host, user and port for auth type: %s", c.AuthType) 155 | } 156 | default: 157 | return fmt.Errorf("invalid auth type specified: %s", c.AuthType) 158 | } 159 | // store the lower case variant for later 160 | c.AuthType = auth 161 | 162 | // Validation complete 163 | c.validated = true 164 | 165 | return nil 166 | } 167 | 168 | func (c *Config) BuildCommand() (cmd string) { 169 | var wrap string 170 | if c.IcingaCommand != "" { 171 | wrap = "try { Use-Icinga; exit (%s) } catch { Write-Host ('UNKNOWN: ' + $error); exit 3 }" 172 | cmd = fmt.Sprintf(wrap, c.IcingaCommand) 173 | } else { 174 | wrap = "try { %s; exit $LASTEXITCODE } catch { Write-Host ('UNKNOWN: ' + $error); exit 3 }" 175 | cmd = fmt.Sprintf(wrap, c.Command) 176 | } 177 | 178 | log.WithField("cmd", cmd).Debug("prepared pwsh for execution") 179 | 180 | cmd = winrm.Powershell(cmd) 181 | log.WithField("cmd", cmd).Debug("prepared winrm command for execution") 182 | 183 | return 184 | } 185 | 186 | func (c *Config) Run(timeout time.Duration) (rc int, output string, err error) { 187 | if !c.validated { 188 | panic("you need to call Validate() before Run()") 189 | } 190 | 191 | log.WithField("config", *c).Debug("Running check with config") 192 | 193 | endpoint := winrm.NewEndpoint( 194 | c.Host, // Host to connect to 195 | c.Port, // Winrm port 196 | !c.NoTls, // Use TLS 197 | c.Insecure, // Allow insecure connection 198 | c.tlsCA, // CA certificate 199 | c.tlsCert, // Client Certificate 200 | c.tlsKey, // Client Key 201 | timeout, // Timeout 202 | ) 203 | params := winrm.DefaultParameters 204 | 205 | // prepare auth parameters 206 | switch c.AuthType { 207 | case AuthNTLM: 208 | params.TransportDecorator = func() winrm.Transporter { 209 | return &winrm.ClientNTLM{} 210 | } 211 | case AuthTLS: 212 | params.TransportDecorator = func() winrm.Transporter { 213 | return &winrm.ClientAuthRequest{} 214 | } 215 | case AuthSSH: 216 | // TODO: port configuration? 217 | var sshClient *ssh.Client 218 | sshClient, err = ssh.Dial("tcp", c.SSHHost+":22", &ssh.ClientConfig{ 219 | User: c.SSHUser, 220 | Auth: []ssh.AuthMethod{ssh.Password(c.SSHPassword)}, 221 | HostKeyCallback: ssh.InsecureIgnoreHostKey(), //nolint:gosec // TODO: really? 222 | }) 223 | 224 | if err != nil { 225 | err = fmt.Errorf("could not connect via SSH: %w", err) 226 | return 227 | } 228 | 229 | params.Dial = sshClient.Dial 230 | default: // default is AuthBasic 231 | params.TransportDecorator = nil 232 | } 233 | 234 | // prepare client 235 | client, err := winrm.NewClientWithParameters(endpoint, c.User, c.Password, params) 236 | if err != nil { 237 | err = fmt.Errorf("could not create client: %w", err) 238 | return 239 | } 240 | 241 | // execute the check remotely 242 | var ( 243 | stdout = &bytes.Buffer{} 244 | stderr = &bytes.Buffer{} 245 | ) 246 | 247 | ctx := context.Background() 248 | 249 | rc, err = client.RunWithContext(ctx, c.BuildCommand(), stdout, stderr) 250 | if err != nil { 251 | err = fmt.Errorf("execution of remote cmd failed: %w", err) 252 | return 253 | } 254 | 255 | output = stdout.String() 256 | 257 | // Info the debug output can confuse testing 258 | if log.GetLevel() >= log.DebugLevel && stderr.Len() > 0 { 259 | output += fmt.Sprintln("stderr contained:") 260 | output += fmt.Sprintln(stderr.String()) 261 | } 262 | 263 | return 264 | } 265 | -------------------------------------------------------------------------------- /check_test.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "strconv" 7 | "strings" 8 | "testing" 9 | "time" 10 | 11 | "github.com/spf13/pflag" 12 | "github.com/stretchr/testify/assert" 13 | ) 14 | 15 | const DefaultTimeout = 15 * time.Second 16 | 17 | func TestConfig_Validate(t *testing.T) { 18 | c := &Config{} 19 | assert.Error(t, c.Validate()) 20 | 21 | // Most basic settings 22 | c.Host = "localhost" 23 | c.Command = "Get-Something" 24 | c.User = "administrator" 25 | c.Password = "verysecret" 26 | 27 | assert.NoError(t, c.Validate()) 28 | assert.Equal(t, c.Port, TlsPort) 29 | assert.False(t, c.NoTls) 30 | assert.Equal(t, c.AuthType, AuthDefault) 31 | assert.True(t, c.validated) 32 | } 33 | 34 | func TestBuildConfigFlags(t *testing.T) { 35 | fs := &pflag.FlagSet{} 36 | config := BuildConfigFlags(fs) 37 | 38 | assert.True(t, fs.HasFlags()) 39 | assert.False(t, config.validated) 40 | } 41 | 42 | func TestConfig_BuildCommand(t *testing.T) { 43 | c := &Config{Command: "Get-Something"} 44 | assert.Contains(t, c.BuildCommand(), "powershell.exe -EncodedCommand") 45 | 46 | c = &Config{IcingaCommand: "Icinga-CheckSomething"} 47 | assert.Contains(t, c.BuildCommand(), "powershell.exe -EncodedCommand") 48 | } 49 | 50 | func TestConfig_Run_WithError(t *testing.T) { 51 | c := &Config{ 52 | Host: "192.0.2.11", 53 | User: "admin", 54 | Password: "test", 55 | Command: "Get-Host", 56 | NoTls: true, 57 | } 58 | 59 | err := c.Validate() 60 | assert.NoError(t, err) 61 | 62 | _, _, err = c.Run(1 * time.Second) 63 | assert.Error(t, err) 64 | assert.Contains(t, err.Error(), "dial tcp 192.0.2.11:") 65 | } 66 | 67 | func TestConfig_Run_Basic(t *testing.T) { 68 | if os.Getenv("WINRM_SKIP_BASIC") != "" { 69 | t.Skip("WINRM_SKIP_BASIC has been set") 70 | } 71 | 72 | if os.Getenv("WINRM_SKIP_UNENCRYPTED") != "" { 73 | t.Skip("WINRM_SKIP_UNENCRYPTED has been set") 74 | } 75 | 76 | c := buildEnvConfig(t, AuthBasic) 77 | c.NoTls = true 78 | 79 | fmt.Printf("%v\n", c) 80 | 81 | runCheck(t, c) 82 | } 83 | 84 | func TestConfig_Run_Basic_WithTLS(t *testing.T) { 85 | if os.Getenv("WINRM_SKIP_BASIC") != "" { 86 | t.Skip("WINRM_SKIP_BASIC has been set") 87 | } 88 | 89 | c := buildEnvConfig(t, AuthBasic) 90 | setupTlsFromEnv(t, c) 91 | 92 | err := c.Validate() 93 | assert.NoError(t, err) 94 | 95 | fmt.Printf("%v\n", c) 96 | 97 | runCheck(t, c) 98 | } 99 | 100 | func TestConfig_Run_NTLM(t *testing.T) { 101 | if os.Getenv("WINRM_SKIP_UNENCRYPTED") != "" { 102 | t.Skip("WINRM_SKIP_UNENCRYPTED has been set") 103 | } 104 | 105 | c := buildEnvConfig(t, AuthNTLM) 106 | c.NoTls = true 107 | 108 | err := c.Validate() 109 | assert.NoError(t, err) 110 | 111 | fmt.Printf("%v\n", c) 112 | 113 | runCheck(t, c) 114 | } 115 | 116 | func TestConfig_Run_NTLM_WithTls(t *testing.T) { 117 | c := buildEnvConfig(t, AuthNTLM) 118 | setupTlsFromEnv(t, c) 119 | 120 | err := c.Validate() 121 | assert.NoError(t, err) 122 | 123 | fmt.Printf("%v\n", c) 124 | 125 | runCheck(t, c) 126 | } 127 | 128 | func TestConfig_Run_TLS(t *testing.T) { 129 | c := buildEnvConfig(t, AuthTLS) 130 | setupTlsFromEnv(t, c) 131 | 132 | if c.TlsCertPath == "" { 133 | t.Skip("WINRM_TLS_CERT not set") 134 | } 135 | 136 | err := c.Validate() 137 | assert.NoError(t, err) 138 | 139 | fmt.Printf("%v\n", c) 140 | 141 | runCheck(t, c) 142 | } 143 | 144 | func runCheck(t *testing.T, c *Config) { 145 | err := c.Validate() 146 | assert.NoError(t, err) 147 | 148 | rc, output, err := c.Run(DefaultTimeout) 149 | assert.NoError(t, err) 150 | assert.Equal(t, 0, rc) 151 | assert.Contains(t, output, "ConsoleHost") 152 | } 153 | 154 | func buildEnvConfig(t *testing.T, auth string) *Config { 155 | host := os.Getenv("WINRM_HOST") 156 | if host == "" { 157 | t.Skip("No env config for WINRM_*") 158 | } 159 | 160 | c := &Config{ 161 | Host: host, 162 | User: os.Getenv("WINRM_USER"), 163 | Password: os.Getenv("WINRM_PASSWORD"), 164 | Command: "Get-Host", 165 | AuthType: auth, 166 | } 167 | 168 | verb := strings.ToUpper(auth) 169 | 170 | if user := os.Getenv("WINRM_" + verb + "_USER"); user != "" { 171 | c.User = user 172 | } 173 | 174 | if password := os.Getenv("WINRM_" + verb + "_PASSWORD"); password != "" { 175 | c.Password = password 176 | } 177 | 178 | return c 179 | } 180 | 181 | func setupTlsFromEnv(t *testing.T, c *Config) { 182 | if os.Getenv("WINRM_SKIP_TLS") != "" { 183 | t.Skip("WINRM_SKIP_TLS has been set") 184 | } 185 | 186 | if os.Getenv("WINRM_INSECURE") != "" { 187 | c.Insecure = true 188 | } 189 | 190 | if file := os.Getenv("WINRM_TLS_CA"); file != "" { 191 | c.TlsCAPath = file 192 | } 193 | 194 | if file := os.Getenv("WINRM_TLS_CERT"); file != "" { 195 | c.TlsCertPath = file 196 | } 197 | 198 | if file := os.Getenv("WINRM_TLS_KEY"); file != "" { 199 | c.TlsKeyPath = file 200 | } 201 | 202 | if file := os.Getenv("WINRM_TLS_PORT"); file != "" { 203 | tmp, err := strconv.ParseInt(file, 10, 16) 204 | assert.NoError(t, err) 205 | 206 | c.Port = int(tmp) 207 | } 208 | } 209 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/Icinga/check_by_powershell 2 | 3 | go 1.23.0 4 | 5 | toolchain go1.24.0 6 | 7 | require ( 8 | github.com/NETWAYS/go-check v0.6.2 9 | github.com/masterzen/winrm v0.0.0-20240702205601-3fad6e106085 10 | github.com/sirupsen/logrus v1.9.3 11 | github.com/spf13/pflag v1.0.6 12 | github.com/stretchr/testify v1.10.0 13 | golang.org/x/crypto v0.38.0 14 | ) 15 | 16 | require ( 17 | github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect 18 | github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6 // indirect 19 | github.com/bodgit/ntlmssp v0.0.0-20240506230425-31973bb52d9b // indirect 20 | github.com/bodgit/windows v1.0.1 // indirect 21 | github.com/davecgh/go-spew v1.1.1 // indirect 22 | github.com/go-logr/logr v1.4.2 // indirect 23 | github.com/gofrs/uuid v4.4.0+incompatible // indirect 24 | github.com/hashicorp/go-cleanhttp v0.5.2 // indirect 25 | github.com/hashicorp/go-uuid v1.0.3 // indirect 26 | github.com/jcmturner/aescts/v2 v2.0.0 // indirect 27 | github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect 28 | github.com/jcmturner/gofork v1.7.6 // indirect 29 | github.com/jcmturner/goidentity/v6 v6.0.1 // indirect 30 | github.com/jcmturner/gokrb5/v8 v8.4.4 // indirect 31 | github.com/jcmturner/rpc/v2 v2.0.3 // indirect 32 | github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786 // indirect 33 | github.com/pmezard/go-difflib v1.0.0 // indirect 34 | github.com/tidwall/transform v0.0.0-20201103190739-32f242e2dbde // indirect 35 | golang.org/x/net v0.38.0 // indirect 36 | golang.org/x/sys v0.33.0 // indirect 37 | golang.org/x/text v0.25.0 // indirect 38 | gopkg.in/yaml.v3 v3.0.1 // indirect 39 | ) 40 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+s7s0MwaRv9igoPqLRdzOLzw/8Xvq8= 2 | github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU= 3 | github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6 h1:w0E0fgc1YafGEh5cROhlROMWXiNoZqApk2PDN0M1+Ns= 4 | github.com/ChrisTrenkamp/goxpath v0.0.0-20210404020558-97928f7e12b6/go.mod h1:nuWgzSkT5PnyOd+272uUmV0dnAnAn42Mk7PiQC5VzN4= 5 | github.com/NETWAYS/go-check v0.6.2 h1:H/9Q/+rVzLbSUV/6QS9eDhyMUml7sf67TF4nSuHBwJo= 6 | github.com/NETWAYS/go-check v0.6.2/go.mod h1:qx8m3s2Xul9wqfUjrCSArEFkOdtwxIyUmBYYrCkqA/8= 7 | github.com/bodgit/ntlmssp v0.0.0-20240506230425-31973bb52d9b h1:baFN6AnR0SeC194X2D292IUZcHDs4JjStpqtE70fjXE= 8 | github.com/bodgit/ntlmssp v0.0.0-20240506230425-31973bb52d9b/go.mod h1:Ram6ngyPDmP+0t6+4T2rymv0w0BS9N8Ch5vvUJccw5o= 9 | github.com/bodgit/windows v1.0.1 h1:tF7K6KOluPYygXa3Z2594zxlkbKPAOvqr97etrGNIz4= 10 | github.com/bodgit/windows v1.0.1/go.mod h1:a6JLwrB4KrTR5hBpp8FI9/9W9jJfeQ2h4XDXU74ZCdM= 11 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 12 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 13 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 14 | github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY= 15 | github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY= 16 | github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA= 17 | github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM= 18 | github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= 19 | github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= 20 | github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ= 21 | github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4= 22 | github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI= 23 | github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM= 24 | github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ= 25 | github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48= 26 | github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro= 27 | github.com/hashicorp/go-uuid v1.0.3 h1:2gKiV6YVmrJ1i2CKKa9obLvRieoRGviZFL26PcT/Co8= 28 | github.com/hashicorp/go-uuid v1.0.3/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro= 29 | github.com/jcmturner/aescts/v2 v2.0.0 h1:9YKLH6ey7H4eDBXW8khjYslgyqG2xZikXP0EQFKrle8= 30 | github.com/jcmturner/aescts/v2 v2.0.0/go.mod h1:AiaICIRyfYg35RUkr8yESTqvSy7csK90qZ5xfvvsoNs= 31 | github.com/jcmturner/dnsutils/v2 v2.0.0 h1:lltnkeZGL0wILNvrNiVCR6Ro5PGU/SeBvVO/8c/iPbo= 32 | github.com/jcmturner/dnsutils/v2 v2.0.0/go.mod h1:b0TnjGOvI/n42bZa+hmXL+kFJZsFT7G4t3HTlQ184QM= 33 | github.com/jcmturner/gofork v1.7.6 h1:QH0l3hzAU1tfT3rZCnW5zXl+orbkNMMRGJfdJjHVETg= 34 | github.com/jcmturner/gofork v1.7.6/go.mod h1:1622LH6i/EZqLloHfE7IeZ0uEJwMSUyQ/nDd82IeqRo= 35 | github.com/jcmturner/goidentity/v6 v6.0.1 h1:VKnZd2oEIMorCTsFBnJWbExfNN7yZr3EhJAxwOkZg6o= 36 | github.com/jcmturner/goidentity/v6 v6.0.1/go.mod h1:X1YW3bgtvwAXju7V3LCIMpY0Gbxyjn/mY9zx4tFonSg= 37 | github.com/jcmturner/gokrb5/v8 v8.4.4 h1:x1Sv4HaTpepFkXbt2IkL29DXRf8sOfZXo8eRKh687T8= 38 | github.com/jcmturner/gokrb5/v8 v8.4.4/go.mod h1:1btQEpgT6k+unzCwX1KdWMEwPPkkgBtP+F6aCACiMrs= 39 | github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY= 40 | github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc= 41 | github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI= 42 | github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= 43 | github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= 44 | github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= 45 | github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786 h1:2ZKn+w/BJeL43sCxI2jhPLRv73oVVOjEKZjKkflyqxg= 46 | github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786/go.mod h1:kCEbxUJlNDEBNbdQMkPSp6yaKcRXVI6f4ddk8Riv4bc= 47 | github.com/masterzen/winrm v0.0.0-20240702205601-3fad6e106085 h1:PiQLLKX4vMYlJImDzJYtQScF2BbQ0GAjPIHCDqzHHHs= 48 | github.com/masterzen/winrm v0.0.0-20240702205601-3fad6e106085/go.mod h1:JajVhkiG2bYSNYYPYuWG7WZHr42CTjMTcCjfInRNCqc= 49 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 50 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 51 | github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= 52 | github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= 53 | github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= 54 | github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o= 55 | github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= 56 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 57 | github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= 58 | github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= 59 | github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA= 60 | github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= 61 | github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 62 | github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 63 | github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= 64 | github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= 65 | github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= 66 | github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= 67 | github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA= 68 | github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= 69 | github.com/tidwall/transform v0.0.0-20201103190739-32f242e2dbde h1:AMNpJRc7P+GTwVbl8DkK2I9I8BBUzNiHuH/tlxrpan0= 70 | github.com/tidwall/transform 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-------------------------------------------------------------------------------- /icinga2/command.conf: -------------------------------------------------------------------------------- 1 | object CheckCommand "powershell" { 2 | command = [ PluginDir + "/check_by_powershell" ] 3 | 4 | arguments = { 5 | "-H" = { 6 | value = "$address$" 7 | description = "Host name, IP Address of the remote host" 8 | } 9 | "-p" = { 10 | value = "$powershell_port$" 11 | description = "Port number WinRM" 12 | } 13 | "--user" = { 14 | value = "$powershell_user$" 15 | description = "Username of the remote host" 16 | } 17 | "--password" = { 18 | value = "$powershell_password$" 19 | description = "Password of the user" 20 | } 21 | "--no-tls" = { 22 | value = "$powershell_no_tls$" 23 | description = "Don't use a TLS connection" 24 | } 25 | "--insecure" = { 26 | value = "$powershell_insecure$" 27 | description = "Verify the hostname on the returned certificate" 28 | } 29 | "--ca" = { 30 | value = "$powershell_ca$" 31 | description = "CA certificate" 32 | } 33 | "--cert" = { 34 | value = "$powershell_cert$" 35 | description = "Client certificate" 36 | } 37 | "--key" = { 38 | value = "$powershell_key$" 39 | description = "Client key" 40 | } 41 | "--icingacmd" = {{ 42 | var command = macro("$by_powershell_command$") 43 | var arguments = macro("$by_powershell_arguments$") 44 | if (typeof(command) == String && !arguments) { 45 | return command 46 | } 47 | 48 | var escaped_args = [] 49 | for (arg in resolve_arguments(command, arguments)) { 50 | escaped_args.add(arg) 51 | } 52 | return escaped_args.join(" ") 53 | description = "Executes commands of Icinga PowerShell Framework" 54 | }} 55 | "--cmd" = { 56 | value = "$powershell_cmd$" 57 | description = "Command to execute on the remote machine" 58 | } 59 | "--auth" = { 60 | value = "$powershell_auth$" 61 | description = "Authentication mechanism - NTLM | SSH" 62 | } 63 | "--sshhost" = { 64 | value = "$powershell_sshhost$" 65 | description = "SSH Host" 66 | } 67 | "--sshuser" = { 68 | value = "$powershell_sshuser$" 69 | description = "SSH Username" 70 | } 71 | "--sshpassword" = { 72 | value = "$powershell_sshpassword$" 73 | description = "SSH Password" 74 | } 75 | } 76 | } 77 | 78 | object CheckCommand "powershell-checkTime-sync" { 79 | import "plugin-check-command" 80 | 81 | command = [ 82 | "Invoke-IcingaCheckTimeSync" 83 | ] 84 | 85 | arguments = { 86 | "-Server" = { 87 | value = "$powershell_ntp_server$" 88 | description = "The NTP server you want to connect to" 89 | } 90 | "-TimeOffset" = { 91 | value = "$powershell_timeoffset$" 92 | description = "Expected offset of the ntp server relative to local server(seconds)." 93 | } 94 | "-Warning" = { 95 | value = "$powershell_warning$" 96 | description = "Offset to result in warning status e.g(10ms or 0.01s)" 97 | } 98 | "-Critical" = { 99 | value = "$powershell_critical$" 100 | description = "Offset to result in critical status e.g(60ms or 0.06s)" 101 | } 102 | "-Timeout" = { 103 | value = "$powershell_timeout$" 104 | description = "Seconds before connection times out (default: 10)" 105 | } 106 | "-IPV4" = { 107 | set_if = "$powershell_server_ipv4$" 108 | description = "Use IPv4 connection. Default to false" 109 | } 110 | "-Port" = { 111 | value = "$powershell_ntp_port$" 112 | description = "Port number ntp server" 113 | } 114 | "-NoPerfData" = { 115 | set_if = "$powershell_perfdata$" 116 | description = "No Performance data. Default to false" 117 | } 118 | "-Verbosity" = { 119 | value = "$powershell_verbosity$" 120 | description = "Set Plugin Output to verbose mode. Default 0" 121 | } 122 | } 123 | } 124 | 125 | -------------------------------------------------------------------------------- /icinga2/example.conf: -------------------------------------------------------------------------------- 1 | object Host "windowshost" { 2 | import "generic-host" 3 | 4 | address = "192.168.172.217" 5 | vars.powershell_port = 5985 6 | vars.powershell_user = "windowsuser" 7 | vars.powershell_password = "secret!pw" 8 | // vars.powershell_insecure = true 9 | 10 | vars.server_type = "windows" 11 | } 12 | 13 | template Service "powershell-template-service" { 14 | import "generic-service" 15 | 16 | vars.original_check_command = check_command 17 | check_command = "powershell" 18 | 19 | vars.by_powershell_command = {{ get_check_command(service.vars.original_check_command).command }} 20 | vars.by_powershell_arguments = {{ get_check_command(service.vars.original_check_command).arguments }} 21 | } 22 | 23 | apply Service "powershell_check_ntp" { 24 | check_command = "powershell-checkTime-sync" 25 | 26 | import "powershell-template-service" 27 | 28 | vars.powershell_ntp_server = "de.pool.ntp.org" 29 | vars.powershell_timeoffset = "10ms" 30 | vars.powershell_warning = "10ms" 31 | vars.powershell_critical = "20ms" 32 | vars.powershell_verbosity = "0" 33 | 34 | assign where host.vars.server_type == "windows" 35 | } 36 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "time" 7 | 8 | "github.com/NETWAYS/go-check" 9 | ) 10 | 11 | const readme = `Icinga check plugin to run checks and other commands directly on 12 | any Windows system using WinRM (Windows Remote Management) and Powershell 13 | 14 | Main use case would be to call one of the plugins from the Icinga Powershell Framework. 15 | This will avoid the requirement of installing an Icinga 2 agent on every Windows system. 16 | 17 | The plugin will require WinRM to be preconfigured for access with a HTTPs or HTTP connection. 18 | 19 | Supported authentication methods: 20 | 21 | * Basic with local users 22 | * NTLM with local or AD accounts 23 | * TLS client certificate 24 | 25 | https://github.com/Icinga/check_by_powershell 26 | 27 | https://github.com/Icinga/icinga-powershell-framework 28 | https://github.com/Icinga/icinga-powershell-plugins 29 | 30 | Copyright (c) 2020 Icinga GmbH 31 | 32 | This program is free software: you can redistribute it and/or modify 33 | it under the terms of the GNU General Public License as published by 34 | the Free Software Foundation, either version 3 of the License, or 35 | (at your option) any later version. 36 | 37 | This program is distributed in the hope that it will be useful, 38 | but WITHOUT ANY WARRANTY; without even the implied warranty of 39 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 40 | GNU General Public License for more details. 41 | 42 | You should have received a copy of the GNU General Public License 43 | along with this program. If not, see https://www.gnu.org/licenses/.` 44 | 45 | func main() { 46 | defer check.CatchPanic() 47 | 48 | plugin := check.NewConfig() 49 | 50 | plugin.Name = "check_by_powershell" 51 | plugin.Readme = readme 52 | plugin.Version = buildVersion() 53 | plugin.Timeout = 10 54 | 55 | config := BuildConfigFlags(plugin.FlagSet) 56 | plugin.ParseArguments() 57 | 58 | err := config.Validate() 59 | if err != nil { 60 | check.ExitRaw(check.Unknown, "could not validate parameters: "+err.Error()) 61 | } 62 | 63 | rc, output, err := config.Run(time.Duration(plugin.Timeout) * time.Second) 64 | if err != nil { 65 | check.ExitRaw(check.Unknown, "execution failed: "+err.Error()) 66 | } 67 | 68 | fmt.Print(output) 69 | os.Exit(rc) 70 | } 71 | -------------------------------------------------------------------------------- /version.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | // default vars set by goreleaser 4 | // https://goreleaser.com/customization/build/ 5 | var ( 6 | version = "0.3.0" 7 | commit string 8 | date string 9 | builtBy string 10 | ) 11 | 12 | func buildVersion() string { 13 | s := version 14 | 15 | if commit != "" { 16 | s += " - " + commit 17 | } 18 | 19 | if date != "" { 20 | s += " (" + date + ")" 21 | } 22 | 23 | if builtBy != "" { 24 | s += " (built by " + builtBy + ")" 25 | } 26 | 27 | return s 28 | } 29 | --------------------------------------------------------------------------------