├── .gitignore ├── LICENSE ├── README.md ├── ansible.cfg ├── etcd.yml ├── inventory ├── k8s.yml └── roles ├── common └── tasks │ ├── create_sshkey.yml │ └── main.yml ├── defunctzombie.coreos-bootstrap ├── .editorconfig ├── .travis.yml ├── LICENSE ├── README.md ├── files │ ├── bootstrap.sh │ ├── get-pip.py │ └── runner ├── meta │ ├── .galaxy_install_info │ └── main.yml ├── tasks │ └── main.yml └── tests │ └── test.yml ├── etcd ├── tasks │ ├── create_secgroup.yml │ ├── create_secgroup_rules.yml │ ├── create_vm.yml │ └── main.yml └── templates │ └── etcd.j2 └── k8s ├── tasks ├── create_inv.yml ├── create_secgroup.yml ├── create_secgroup_rules.yml ├── create_vm.yml └── main.yml └── templates ├── inventory.j2 ├── k8s-master.j2 └── k8s-node.j2 /.gitignore: -------------------------------------------------------------------------------- 1 | cloudstack.ini 2 | *.retry -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Ansible Recipes to Install Kubernetes on CloudStack 2 | ===================================== 3 | 4 | Basic recipes using the ansible cloudstack module to create ssh keys, sec group etc and deploy [Kubernetes](http://kubernetes.io) on [CoreOS](http://coreos.com). 5 | 6 | Prerequisites 7 | ------------- 8 | 9 | You will need Ansible and [cs](https://github.com/exoscale/cs) :) 10 | 11 | $ sudo apt-get install -y python-pip libssl-dev 12 | $ sudo pip install cs 13 | $ sudo pip install sshpubkeys 14 | $ sudo apt-get install software-properties-common 15 | $ sudo apt-add-repository ppa:ansible/ansible 16 | $ sudo apt-get update 17 | $ sudo apt-get install ansible 18 | 19 | Setup cs 20 | -------- 21 | 22 | Create a `~/.cloudstack.ini` file with your creds and cloudstack endpoint: 23 | 24 | [cloudstack] 25 | endpoint = 26 | key = 27 | secret = 28 | method = post 29 | 30 | We need to use the http POST method to pass the userdata to the coreOS instances. 31 | 32 | We can also use variables: 33 | 34 | CLOUDSTACK_ENDPOINT= 35 | CLOUDSTACK_KEY= 36 | CLOUDSTACK_SECRET= 37 | CLOUDSTACK_METHOD=post 38 | 39 | On CloudStack server you have to install libselinux-python 40 | 41 | yum install libselinux-python 42 | 43 | Clone the repository 44 | --------------- 45 | 46 | $ git clone https://github.com/apachecloudstack/k8s 47 | $ cd ansible-kubernetes 48 | 49 | Create a Kubernetes cluster 50 | --------------------------- 51 | 52 | $ ansible-playbook k8s.yml 53 | 54 | Some variables can be edited in the `k8s.yml` file. 55 | This will start a Kubernetes master node and a number of compute nodes. 56 | This is all setup via coreOS instances and passing userdata. 57 | 58 | Check the tasks and templates in `roles/k8s` 59 | 60 | If you retrieve an error during the ssh key copy: 61 | 62 | "msg": "file (/root/.ssh/id_rsa_k8s) is absent, cannot continue", 63 | 64 | Please run the Playbook a second time [(related issue)](https://github.com/apachecloudstack/k8s/issues/5) 65 | 66 | Create etcd cluster 67 | ------------------- 68 | 69 | That's a bonus to this work, there is a playbook to create an independent etcd cluster. 70 | 71 | $ ansible-playbook etcd.yml 72 | 73 | Edit some of the variables in the `etcd.yml` file directly. 74 | 75 | Important Notice 76 | ------------- 77 | 78 | If you want to run it on a CloudStack environment with VMware ESX hosts cluster. You have to comment the lines refer to secgroups and secgroup_rules (specific to KVM) : 79 | k8s.yml 80 | k8s/tasks/main.yml 81 | k8s/tasks/create_vm.yml 82 | etcd.yml 83 | etcd/tasks/main.yml 84 | -------------------------------------------------------------------------------- /ansible.cfg: -------------------------------------------------------------------------------- 1 | [defaults] 2 | hostfile = ./inventory 3 | library = library 4 | -------------------------------------------------------------------------------- /etcd.yml: -------------------------------------------------------------------------------- 1 | --- 2 | - hosts: localhost 3 | connection: local 4 | 5 | vars: 6 | ssh_key: etcd 7 | etcd_num_nodes: 3 8 | etcd_security_group_name: etcd 9 | etcd_node_prefix: etcd 10 | etcd_template: Linux CoreOS alpha 435 64-bit 10GB Disk 11 | etcd_instance_type: Tiny 12 | 13 | pre_tasks: 14 | - name: Get bootstrap token for etcd 15 | command: curl -w "\n" https://discovery.etcd.io/new 16 | register: token 17 | - debug: msg='Etcd token is {{ token.stdout }}' 18 | 19 | roles: 20 | - common 21 | - etcd 22 | -------------------------------------------------------------------------------- /inventory: -------------------------------------------------------------------------------- 1 | [default] 2 | 3 | -------------------------------------------------------------------------------- /k8s.yml: -------------------------------------------------------------------------------- 1 | --- 2 | - hosts: 3 | connection: ssh 4 | vars: 5 | ssh_key: k8s 6 | k8s_version: v0.11.0 7 | k8s_num_nodes: 2 8 | k8s_security_group_name: k8s 9 | k8s_node_prefix: k8s 10 | k8s_template: 11 | k8s_instance_type: 12 | 13 | roles: 14 | - common 15 | - k8s 16 | -------------------------------------------------------------------------------- /roles/common/tasks/create_sshkey.yml: -------------------------------------------------------------------------------- 1 | - name: Create SSH Key 2 | local_action: 3 | module: cs_sshkeypair 4 | name: "{{ ssh_key }}" 5 | register: key 6 | tags: sshkey 7 | 8 | - debug: msg='private key is {{ key.private_key }}' 9 | when: key.changed 10 | tags: sshkey 11 | 12 | - local_action: copy content="{{ key.private_key }}" dest="~/.ssh/id_rsa_{{ ssh_key }}" 13 | when: key.changed 14 | tags: sshkey 15 | 16 | - file: path="~/.ssh/id_rsa_{{ ssh_key }}" mode=0600 17 | when: key.changed 18 | tags: sshkey 19 | -------------------------------------------------------------------------------- /roles/common/tasks/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | - include: create_sshkey.yml 3 | -------------------------------------------------------------------------------- /roles/defunctzombie.coreos-bootstrap/.editorconfig: -------------------------------------------------------------------------------- 1 | # EditorConfig is awesome: http://EditorConfig.org 2 | 3 | # top-most EditorConfig file 4 | root = true 5 | 6 | # Unix-style newlines with a newline ending every file 7 | [*] 8 | end_of_line = lf 9 | insert_final_newline = true 10 | indent_style = space 11 | indent_size = 2 12 | -------------------------------------------------------------------------------- /roles/defunctzombie.coreos-bootstrap/.travis.yml: -------------------------------------------------------------------------------- 1 | --- 2 | language: python 3 | python: "2.7" 4 | 5 | env: 6 | - SITE=test.yml 7 | 8 | before_install: 9 | - sudo apt-get update -qq 10 | - sudo apt-get install -y curl 11 | 12 | install: 13 | - pip install ansible 14 | 15 | # Add ansible.cfg to pick up roles path. 16 | - "printf '[defaults]\nroles_path = ../' > ansible.cfg" 17 | 18 | script: 19 | - "ansible-playbook -i tests/inventory tests/$SITE --syntax-check" 20 | -------------------------------------------------------------------------------- /roles/defunctzombie.coreos-bootstrap/LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Roman Shtylman 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /roles/defunctzombie.coreos-bootstrap/README.md: -------------------------------------------------------------------------------- 1 | # coreos-bootstrap 2 | 3 | In order to effectively run ansible, the target machine needs to have a python interpreter. Coreos machines are minimal and do not ship with any version of python. To get around this limitation we can install [pypy](http://pypy.org/), a lightweight python interpreter. The coreos-bootstrap role will install pypy for us and we will update our inventory file to use the installed python interpreter. 4 | 5 | # install 6 | 7 | ``` 8 | ansible-galaxy install defunctzombie.coreos-bootstrap 9 | ``` 10 | 11 | # Configure your project 12 | 13 | Unlike a typical role, you need to configure Ansible to use an alternative python interpreter for coreos hosts. This can be done by adding a `coreos` group to your inventory file and setting the group's vars to use the new python interpreter. This way, you can use ansible to manage CoreOS and non-CoreOS hosts. Simply put every host that has CoreOS into the `coreos` inventory group and it will automatically use the specified python interpreter. 14 | ``` 15 | [coreos] 16 | host-01 17 | host-02 18 | 19 | [coreos:vars] 20 | ansible_ssh_user=core 21 | ansible_python_interpreter="PATH=/home/core/bin:$PATH python" 22 | ``` 23 | 24 | This will configure ansible to use the python interpreter at `/home/core/bin/python` which will be created by the coreos-bootstrap role. 25 | 26 | ## Bootstrap Playbook 27 | 28 | Now you can simply add the following to your playbook file and include it in your `site.yml` so that it runs on all hosts in the coreos group. 29 | 30 | ```yaml 31 | - hosts: coreos 32 | gather_facts: False 33 | roles: 34 | - defunctzombie.coreos-bootstrap 35 | ``` 36 | 37 | Make sure that `gather_facts` is set to false, otherwise ansible will try to first gather system facts using python which is not yet installed! 38 | 39 | ## Example Playbook 40 | 41 | After bootstrap, you can use ansible as usual to manage system services, install python modules (via pip), and run containers. Below is a basic example that starts the `etcd` service, installs the `docker-py` module and then uses the ansible `docker` module to pull and start a basic nginx container. 42 | 43 | ```yaml 44 | - name: Nginx Example 45 | hosts: web 46 | sudo: true 47 | tasks: 48 | - name: Start etcd 49 | service: name=etcd.service state=started 50 | 51 | - name: Install docker-py 52 | pip: name=docker-py 53 | 54 | - name: pull container 55 | raw: docker pull nginx:1.7.1 56 | 57 | - name: launch nginx container 58 | docker: 59 | image="nginx:1.7.1" 60 | name="example-nginx" 61 | ports="8080:80" 62 | state=running 63 | ``` 64 | 65 | # License 66 | MIT 67 | -------------------------------------------------------------------------------- /roles/defunctzombie.coreos-bootstrap/files/bootstrap.sh: -------------------------------------------------------------------------------- 1 | #/bin/bash 2 | 3 | set -e 4 | 5 | cd 6 | 7 | if [-e $HOME/.bootstrapped]; then 8 | exit 0 9 | fi 10 | 11 | PYPY_VERSION=2.4.0 12 | 13 | wget https://bitbucket.org/pypy/pypy/downloads/pypy-$PYPY_VERSION-linux64.tar.bz2 14 | tar -xf pypy-$PYPY_VERSION-linux64.tar.bz2 15 | mv pypy-$PYPY_VERSION-linux64 pypy 16 | 17 | ## library fixup 18 | mkdir pypy/lib 19 | ln -s /lib64/libncurses.so.5.9 $HOME/pypy/lib/libtinfo.so.5 20 | 21 | mkdir -p $HOME/bin 22 | 23 | cat > $HOME/bin/python <