├── .github
    └── workflows
    │   └── main.yml
├── LICENSE
├── README.md
├── action.yml
└── renovate.json


/.github/workflows/main.yml:
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 1 | name: Builds, tests & co
 2 | 
 3 | on:
 4 |   pull_request:
 5 |   push:
 6 |   schedule:
 7 |     # Prime the caches every Monday
 8 |     - cron: 0 1 * * MON
 9 | 
10 | permissions: read-all
11 | 
12 | jobs:
13 |   test:
14 |     name: Test
15 | 
16 |     strategy:
17 |       fail-fast: false
18 |       matrix:
19 |         os:
20 |           - macos-latest
21 |           - ubuntu-latest
22 |           - windows-latest
23 | 
24 |     runs-on: ${{ matrix.os }}
25 | 
26 |     steps:
27 |       - name: Checkout tree
28 |         uses: actions/checkout@v4
29 | 
30 |       - name: Tune GitHub-hosted runner network
31 |         uses: ./
32 | 


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/LICENSE:
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 1 | ISC License
 2 | 
 3 | Copyright (c) 2023, Sora Morimoto <sora@morimoto.io>
 4 | 
 5 | Permission to use, copy, modify, and/or distribute this software for any
 6 | purpose with or without fee is hereby granted, provided that the above
 7 | copyright notice and this permission notice appear in all copies.
 8 | 
 9 | THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 | WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 | MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 | ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 | 


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/README.md:
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 1 | # Tune GitHub-hosted runner network
 2 | 
 3 | This action aims to provide an OS-neutral interface to disable TCP/UDP offload
 4 | to fix flaky networking on GitHub-hosted runners.
 5 | 
 6 | ### Motivation
 7 | 
 8 | [actions/runner-images#1187](https://github.com/actions/runner-images/issues/1187)
 9 | 
10 | ### Roadmap
11 | 
12 | Once `@actions/runner-images-team` resolves the upstream issue, we will mark the
13 | action as deprecated. As it is impossible to eliminate the action from
14 | everyone's workflow even if we mark the action as deprecated, and since it is
15 | unsure whether we can continue to provide full support after that, we aim not to
16 | add any runtime dependencies. So we do not merge pull requests that migrate to
17 | the
18 | [JavaScript action](https://docs.github.com/en/actions/creating-actions/about-custom-actions).
19 | 
20 | ### Usage
21 | 
22 | We adhere to [semantic versioning](https://semver.org), it's safe to use the
23 | major version (`v1`) in your workflow.
24 | 
25 | ```yml
26 | runs-on: ubuntu-latest
27 | 
28 | steps:
29 |   - name: Tune GitHub-hosted runner network
30 |     uses: smorimoto/tune-github-hosted-runner-network@v1
31 | 
32 |   - name: Checkout tree
33 |     uses: actions/checkout@v4
34 | ```
35 | 


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/action.yml:
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 1 | name: Tune GitHub-hosted runner network
 2 | description: OS-neutral interface to disable TCP/UDP offload to fix flaky networking on GitHub-hosted runners
 3 | author: Sora Morimoto
 4 | branding:
 5 |   icon: wifi
 6 |   color: gray-dark
 7 | runs:
 8 |   using: composite
 9 |   steps:
10 |     - name: Tune Linux Network
11 |       if: ${{ runner.os == 'Linux' }}
12 |       shell: bash
13 |       run: sudo ethtool -K eth0 tx off rx off
14 | 
15 |     - name: Tune Windows Network
16 |       if: ${{ runner.os == 'Windows' }}
17 |       shell: pwsh
18 |       run: Disable-NetAdapterChecksumOffload -Name * -TcpIPv4 -UdpIPv4 -TcpIPv6 -UdpIPv6
19 | 
20 |     - name: Tune macOS Network
21 |       if: ${{ runner.os == 'macOS' }}
22 |       shell: bash
23 |       run: |
24 |         sudo sysctl -w net.link.generic.system.hwcksum_tx=0
25 |         sudo sysctl -w net.link.generic.system.hwcksum_rx=0
26 | 


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/renovate.json:
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 1 | {
 2 |   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
 3 |   "extends": [
 4 |     "config:recommended",
 5 |     ":disableRateLimiting",
 6 |     ":semanticCommitsDisabled"
 7 |   ],
 8 |   "rebaseWhen": "conflicted"
 9 | }
10 | 


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