[CI] Only run GitHub Actions on the main repo (#55349)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

Harry Mellor committed Sep 4, 2026 at 17:09 UTC 5e729d84eb4c91411172f2245c37cf05579ea5b9
10 files changed +14 -5
.github/workflows/add_label_automerge.yml
+1
@@ -7,6 +7,7 @@ on:
7 - auto_merge_enabled
8 jobs:
9 add-label-on-auto-merge:
10 + if: github.repository_owner == 'vllm-project'
11 runs-on: [self-hosted, linux, x64, vllm-runners]
12 steps:
13 - name: Add label
.github/workflows/buf.yml
+1
@@ -21,6 +21,7 @@ concurrency:
21
22 jobs:
23 proto:
24 + if: github.repository_owner == 'vllm-project'
25 runs-on: ubuntu-latest
26 steps:
27 - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
.github/workflows/issue_autolabel.yml
+1
@@ -10,6 +10,7 @@ concurrency:
10 cancel-in-progress: true
11 jobs:
12 add-labels:
13 + if: github.repository_owner == 'vllm-project'
14 runs-on: ubuntu-latest
15 steps:
16 - name: Label issues based on keywords
.github/workflows/macos-smoke-test.yml
+1
@@ -11,6 +11,7 @@ permissions:
11
12 jobs:
13 macos-m1-smoke-test:
14 + if: github.repository_owner == 'vllm-project'
15 # macos-26 (the supported target) is still a preview runner, so gate on GA
16 # macos-15 and keep macos-26 non-blocking.
17 strategy:
.github/workflows/new_pr_bot.yml
+2
@@ -9,6 +9,7 @@ permissions:
9
10 jobs:
11 update-description:
12 + if: github.repository_owner == 'vllm-project'
13 runs-on: ubuntu-latest
14 steps:
15 - name: Update PR description
@@ -52,6 +53,7 @@ jobs:
53 }
54
55 reminder-comment:
56 + if: github.repository_owner == 'vllm-project'
57 runs-on: ubuntu-latest
58 steps:
59 - name: Post welcome comment for first-time contributors
.github/workflows/notify-ci-authorized.yml
+3 -2
@@ -24,13 +24,14 @@ permissions:
24 jobs:
25 notify:
26 if: >-
27 - (github.event_name == 'pull_request_target' &&
27 + github.repository_owner == 'vllm-project' &&
28 + ((github.event_name == 'pull_request_target' &&
29 github.event.action == 'labeled' &&
30 (github.event.label.name == 'ready' ||
31 github.event.label.name == 'ready-run-all-tests')) ||
32 (github.event_name == 'workflow_run' &&
33 github.event.workflow_run.event == 'pull_request_review' &&
33 - github.event.workflow_run.conclusion == 'success')
34 + github.event.workflow_run.conclusion == 'success'))
35 runs-on: [self-hosted, linux, x64, vllm-runners]
36 steps:
37 - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
.github/workflows/pr-title.yml
+1
@@ -20,6 +20,7 @@ jobs:
20 # - A draft PR with the `ready` label is marked ready for review.
21 # - New commits are pushed to a ready PR (so its latest commit has a title check status).
22 if: >-
23 + github.repository_owner == 'vllm-project' &&
24 github.event.pull_request.draft == false &&
25 contains(github.event.pull_request.labels.*.name, 'ready') &&
26 (github.event.action != 'labeled' || github.event.label.name == 'ready') &&
.github/workflows/pre-commit.yml
+2 -2
@@ -16,7 +16,7 @@ permissions:
16
17 jobs:
18 pre-run-check:
19 - if: github.event_name == 'pull_request'
19 + if: github.repository_owner == 'vllm-project' && github.event_name == 'pull_request'
20 runs-on: [self-hosted, linux, x64, vllm-runners]
21 steps:
22 - name: Check PR label and author merge count
@@ -46,7 +46,7 @@ jobs:
46
47 pre-commit:
48 needs: pre-run-check
49 - if: always() && (needs.pre-run-check.result == 'success' || needs.pre-run-check.result == 'skipped')
49 + if: github.repository_owner == 'vllm-project' && always() && (needs.pre-run-check.result == 'success' || needs.pre-run-check.result == 'skipped')
50 runs-on: [self-hosted, linux, x64, vllm-runners]
51 steps:
52 - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
.github/workflows/record-ci-approval.yml
+1 -1
@@ -8,7 +8,7 @@ permissions: {}
8
9 jobs:
10 approved:
11 - if: github.event.review.state == 'approved'
11 + if: github.repository_owner == 'vllm-project' && github.event.review.state == 'approved'
12 runs-on: [self-hosted, linux, x64, vllm-runners]
13 steps:
14 - run: echo "Approval recorded"
.github/workflows/run-ci-command.yml
+1
@@ -16,6 +16,7 @@ permissions:
16 jobs:
17 run-ci-command:
18 if: >-
19 + github.repository_owner == 'vllm-project' &&
20 github.event.issue.pull_request &&
21 (github.event.comment.body == '/ci run' ||
22 github.event.comment.body == '/ci run all' ||