From b6975ab08f746f003c0f7a54c9449a0d25f90b9f Mon Sep 17 00:00:00 2001
From: "Sergio R. Caprile" <scaprile@cesanta.com>
Date: Wed, 4 Nov 2026 14:56:11 -0300
Subject: [PATCH] pin Ubuntu runners during migration

---
 .github/workflows/nightly.yml   | 18 +++++++++---------
 .github/workflows/on_demand.yml |  2 +-
 .github/workflows/quicktest.yml |  4 ++--
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index d10d97a6..e004156f 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -53,7 +53,7 @@ jobs:
         scp -o "StrictHostKeyChecking=no" json "root@176.9.217.245:/data/downloads/health/linux_${{ matrix.target }}_${{ matrix.cc }}_${{ matrix.ssl }}_${{ matrix.select }}_$(date +"%Y%m%d").json"
 
   c89:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -137,7 +137,7 @@ jobs:
         make -C test mip_tap_test
 
   mip89:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -149,7 +149,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: sudo apt -y update ; sudo apt -y install binfmt-support qemu-user-static && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make -C test ${{ matrix.target }} IPV6=${{ matrix.ipv6 }}
   mipbe:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -168,7 +168,7 @@ jobs:
         make -C test ${{ matrix.target }} IPV6=${{ matrix.ipv6 }} SSL=${{ matrix.ssl }}
 
   miprtxbe:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     name: MIP RTX be s390 port
     env:
       IPV6: 0
@@ -216,7 +216,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: make -C test ${{ matrix.target }} IPV6=${{ matrix.ipv6 }}
   l2be:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -285,7 +285,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: make -C test ${{ matrix.target }}
   atcmdbe:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -325,7 +325,7 @@ jobs:
         scp -o "StrictHostKeyChecking=no" json "root@176.9.217.245:/data/downloads/health/bsd_${{ matrix.cc }}_$(date +"%Y%m%d").json"
 
   bsdbe:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -343,7 +343,7 @@ jobs:
         make -C test/bsd ${{ matrix.target }}
 
   s390:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -356,7 +356,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: sudo apt -y update ; sudo apt -y install binfmt-support qemu-user-static && ./test/setup_mqtt_server.sh && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make -C test s390 SSL=${{ matrix.ssl }}
   armhf:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/on_demand.yml b/.github/workflows/on_demand.yml
index 7e4f34ea..cc5b85b1 100644
--- a/.github/workflows/on_demand.yml
+++ b/.github/workflows/on_demand.yml
@@ -35,7 +35,7 @@ jobs:
       with: { fetch-depth: 2 }
     - run: make -C test ${{ matrix.target }}
   atcmdbe:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/quicktest.yml b/.github/workflows/quicktest.yml
index c593e86b..d21525c4 100644
--- a/.github/workflows/quicktest.yml
+++ b/.github/workflows/quicktest.yml
@@ -35,7 +35,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run: if [ "${{ matrix.target }}" == "test" ]; then ./test/setup_mqtt_server.sh ; fi && make -C test ${{ matrix.target }}
   s390:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     env:
       TFLAGS: -DMQTT_LOCALHOST
     steps:
@@ -45,7 +45,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run: sudo apt -y update ; sudo apt -y install binfmt-support qemu-user-static && ./test/setup_mqtt_server.sh && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make -C test s390
   armhf:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     env:
       TFLAGS: -DMQTT_LOCALHOST
     steps: