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.github: only save cache on main

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The cache artifacts from a full run of test.yml are 14GB. Only save
artifacts from the main branch to ensure we don't thrash too much. Most
branches should get decent performance with a hit from recent main.

Fixes tailscale/corp#34739

Change-Id: Ia83269d878e4781e3ddf33f1db2f21d06ea2130f
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
This commit is contained in:
Tom Proctor
2025-12-01 21:42:57 +00:00
parent 37b4dd047f
commit 97f1fd6d48
1 changed files with 95 additions and 58 deletions
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153
.github/workflows/test.yml vendored
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@@ -136,21 +136,20 @@ jobs:
key: ${{ needs.gomod-cache.outputs.cache-key }} key: ${{ needs.gomod-cache.outputs.cache-key }}
enableCrossOsArchive: true enableCrossOsArchive: true
- name: Restore Cache - name: Restore Cache
uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4 id: restore-cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with: with:
# Note: unlike the other setups, this is only grabbing the mod download # Note: this is only restoring the build cache. Mod cache is shared amongst
# cache, rather than the whole mod directory, as the download cache # all jobs in the workflow.
# contains zips that can be unpacked in parallel faster than they can be
# fetched and extracted by tar
path: | path: |
~/.cache/go-build ~/.cache/go-build
~\AppData\Local\go-build ~\AppData\Local\go-build
# The -2- here should be incremented when the scheme of data to be key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
# cached changes (e.g. path above changes).
key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
restore-keys: | restore-keys: |
${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-${{ hashFiles('**/go.sum') }} ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2- ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-
- name: build all - name: build all
if: matrix.buildflags == '' # skip on race builder if: matrix.buildflags == '' # skip on race builder
working-directory: src working-directory: src
@@ -206,6 +205,17 @@ jobs:
shell: bash shell: bash
run: | run: |
find $(go env GOCACHE) -type f -mmin +90 -delete find $(go env GOCACHE) -type f -mmin +90 -delete
- name: Save Cache
# Save cache even on failure, but only on cache miss and main branch to avoid thrashing.
if: always() && steps.restore-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/main'
uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only saving the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
windows: windows:
# windows-8vpu is a 2022 GitHub-managed runner in our # windows-8vpu is a 2022 GitHub-managed runner in our
@@ -376,28 +386,26 @@ jobs:
uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
with: with:
path: src path: src
- name: Restore Cache
uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: unlike the other setups, this is only grabbing the mod download
# cache, rather than the whole mod directory, as the download cache
# contains zips that can be unpacked in parallel faster than they can be
# fetched and extracted by tar
path: |
~/.cache/go-build
~\AppData\Local\go-build
# The -2- here should be incremented when the scheme of data to be
# cached changes (e.g. path above changes).
key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
restore-keys: |
${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}
${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-
- name: Restore Go module cache - name: Restore Go module cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4 uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with: with:
path: gomodcache path: gomodcache
key: ${{ needs.gomod-cache.outputs.cache-key }} key: ${{ needs.gomod-cache.outputs.cache-key }}
enableCrossOsArchive: true enableCrossOsArchive: true
- name: Restore Cache
id: restore-cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only restoring the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-
- name: build all - name: build all
working-directory: src working-directory: src
run: ./tool/go build ./cmd/... run: ./tool/go build ./cmd/...
@@ -418,6 +426,17 @@ jobs:
shell: bash shell: bash
run: | run: |
find $(go env GOCACHE) -type f -mmin +90 -delete find $(go env GOCACHE) -type f -mmin +90 -delete
- name: Save Cache
# Save cache even on failure, but only on cache miss and main branch to avoid thrashing.
if: always() && steps.restore-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/main'
uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only saving the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
ios: # similar to cross above, but iOS can't build most of the repo. So, just ios: # similar to cross above, but iOS can't build most of the repo. So, just
# make it build a few smoke packages. # make it build a few smoke packages.
@@ -466,28 +485,26 @@ jobs:
uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
with: with:
path: src path: src
- name: Restore Cache
uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: unlike the other setups, this is only grabbing the mod download
# cache, rather than the whole mod directory, as the download cache
# contains zips that can be unpacked in parallel faster than they can be
# fetched and extracted by tar
path: |
~/.cache/go-build
~\AppData\Local\go-build
# The -2- here should be incremented when the scheme of data to be
# cached changes (e.g. path above changes).
key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
restore-keys: |
${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}
${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-
- name: Restore Go module cache - name: Restore Go module cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4 uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with: with:
path: gomodcache path: gomodcache
key: ${{ needs.gomod-cache.outputs.cache-key }} key: ${{ needs.gomod-cache.outputs.cache-key }}
enableCrossOsArchive: true enableCrossOsArchive: true
- name: Restore Cache
id: restore-cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only restoring the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-
- name: build core - name: build core
working-directory: src working-directory: src
run: ./tool/go build ./cmd/tailscale ./cmd/tailscaled run: ./tool/go build ./cmd/tailscale ./cmd/tailscaled
@@ -501,6 +518,17 @@ jobs:
shell: bash shell: bash
run: | run: |
find $(go env GOCACHE) -type f -mmin +90 -delete find $(go env GOCACHE) -type f -mmin +90 -delete
- name: Save Cache
# Save cache even on failure, but only on cache miss and main branch to avoid thrashing.
if: always() && steps.restore-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/main'
uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only saving the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
android: android:
# similar to cross above, but android fails to build a few pieces of the # similar to cross above, but android fails to build a few pieces of the
@@ -538,28 +566,26 @@ jobs:
uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
with: with:
path: src path: src
- name: Restore Cache
uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: unlike the other setups, this is only grabbing the mod download
# cache, rather than the whole mod directory, as the download cache
# contains zips that can be unpacked in parallel faster than they can be
# fetched and extracted by tar
path: |
~/.cache/go-build
~\AppData\Local\go-build
# The -2- here should be incremented when the scheme of data to be
# cached changes (e.g. path above changes).
key: ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
restore-keys: |
${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}
${{ github.job }}-${{ runner.os }}-go-2-
- name: Restore Go module cache - name: Restore Go module cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4 uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with: with:
path: gomodcache path: gomodcache
key: ${{ needs.gomod-cache.outputs.cache-key }} key: ${{ needs.gomod-cache.outputs.cache-key }}
enableCrossOsArchive: true enableCrossOsArchive: true
- name: Restore Cache
id: restore-cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only restoring the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-js-wasm-go-
- name: build tsconnect client - name: build tsconnect client
working-directory: src working-directory: src
run: ./tool/go build ./cmd/tsconnect/wasm ./cmd/tailscale/cli run: ./tool/go build ./cmd/tsconnect/wasm ./cmd/tailscale/cli
@@ -578,6 +604,17 @@ jobs:
shell: bash shell: bash
run: | run: |
find $(go env GOCACHE) -type f -mmin +90 -delete find $(go env GOCACHE) -type f -mmin +90 -delete
- name: Save Cache
# Save cache even on failure, but only on cache miss and main branch to avoid thrashing.
if: always() && steps.restore-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/main'
uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only saving the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
tailscale_go: # Subset of tests that depend on our custom Go toolchain. tailscale_go: # Subset of tests that depend on our custom Go toolchain.
runs-on: ubuntu-24.04 runs-on: ubuntu-24.04