Use the mempool-ci runner

.github/workflows/backend-integration.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         node: ["24.13.0"]
       fail-fast: false
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
 
     name: Backend Integration Tests - node ${{ matrix.node }}
     

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
         node: ["24.13.0"]
         flavor: ["dev", "prod"]
       fail-fast: false
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
 
     name: Backend (${{ matrix.flavor }}) - node ${{ matrix.node }}
     steps:
@@ -97,7 +97,7 @@ jobs:
     strategy:
       matrix:
         node: ["24.13.0"]
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -205,7 +205,7 @@ jobs:
         node: ["24.13.0"]
         flavor: ["dev", "prod"]
       fail-fast: false
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
 
     name: Frontend (${{ matrix.flavor }}) - node ${{ matrix.node }}
     steps:
@@ -299,7 +299,7 @@ jobs:
   
   e2e:
     if: "(github.event_name == 'pull_request' && !contains(github.event.pull_request.labels.*.name, 'ops') && !contains(github.head_ref, 'ops/')) || github.event_name == 'push'"
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     needs: frontend
     strategy:
       fail-fast: false
@@ -440,7 +440,7 @@ jobs:
           CYPRESS_PROJECT_ID: ${{ secrets.CYPRESS_PROJECT_ID }}
   validate_docker_json:
     if: "(github.event_name == 'pull_request' && !contains(github.event.pull_request.labels.*.name, 'ops') && !contains(github.head_ref, 'ops/')) || github.event_name == 'push'"
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     name: Validate generated backend Docker JSON
 
     steps: 

.github/workflows/docker.yml

@@ -19,7 +19,7 @@ permissions:
 jobs:
   test-images:
     # Always run on tag pushes and all pull requests
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     timeout-minutes: 30
     name: Test built Docker images
     steps:
@@ -232,7 +232,7 @@ jobs:
         service:
           - frontend
           - backend
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     timeout-minutes: 120
     name: Build and push to DockerHub
     outputs:
@@ -362,7 +362,7 @@ jobs:
     needs: build
     # Only for successful tag pushes (not PRs with docker-push label) and only for "plain" versions (no '-')
     if: ${{ needs.build.result == 'success' && github.event_name == 'push' && !contains(github.ref_name, '-') }}
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     timeout-minutes: 30
     name: Tag release build as latest
     strategy:

.github/workflows/e2e_parameterized.yml

@@ -22,7 +22,7 @@ on:
 jobs:
   cache:
     name: "Cache assets for builds"
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     steps:
       - name: Determine checkout ref
         id: determine-ref
@@ -123,7 +123,7 @@ jobs:
           key: promo-video-assets-cache
 
   e2e:
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     needs: cache
     strategy:
       fail-fast: false

.github/workflows/get_backend_block_height.yml

@@ -4,7 +4,7 @@ on: [workflow_dispatch]
 
 jobs:
   print-backend-sha:
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     name: Get block height
     steps:
       - name: Checkout

.github/workflows/get_backend_hash.yml

@@ -4,7 +4,7 @@ on: [workflow_dispatch]
 
 jobs:
   print-backend-sha:
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     name: Print backend hashes
     steps:
       - name: Checkout

.github/workflows/get_image_digest.yml

@@ -10,7 +10,7 @@ on:
         type: string 
 jobs:
   print-images-sha:
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     name: Print digest for images
     steps:
       - name: Checkout

.github/workflows/project-review-status.yml

@@ -12,7 +12,7 @@ on:
 
 jobs:
   manage-project-board:
-    runs-on: ubuntu-latest
+    runs-on: mempool-ci
     steps:
       - name: Update Project Board
         uses: actions/github-script@v7