fix: Resolve APT lock conflicts and DNS issues in LXD containers

- Disable automatic package updates in cloud-init to avoid lock conflicts
- Add wait loop for APT locks to be released before running updates
- Configure DNS properly with fallback nameservers and /etc/hosts entry
- Add 30-minute timeout to prevent CI jobs from hanging indefinitely
- Move DNS configuration to cloud-init to avoid race conditions

These changes should fix:
- 'Could not get APT lock' errors
- 'Temporary failure in name resolution' errors
- Jobs hanging indefinitely

Author: dguido

.github/workflows/main.yml

@@ -46,6 +46,7 @@ jobs:
 
   scripted-deploy:
     runs-on: ubuntu-24.04
+    timeout-minutes: 30
     permissions:
       contents: read
     strategy:
@@ -140,6 +141,7 @@ jobs:
 
   docker-deploy:
     runs-on: ubuntu-24.04
+    timeout-minutes: 30
     permissions:
       contents: read
     strategy:

tests/cloud-init.sh

@@ -5,12 +5,29 @@ BRANCH_NAME=${BRANCH:-master}
 
 cat << EOF
 #cloud-config
-package_update: true
-package_upgrade: true
+# Disable automatic package updates to avoid APT lock conflicts
+package_update: false
+package_upgrade: false
 runcmd:
   - |
     #!/bin/bash
     set -ex
+    
+    # Wait for any running apt processes to finish
+    while fuser /var/lib/dpkg/lock-frontend >/dev/null 2>&1 || fuser /var/lib/apt/lists/lock >/dev/null 2>&1; do
+      echo "Waiting for apt locks to be released..."
+      sleep 5
+    done
+    
+    # Fix DNS resolution
+    echo "nameserver 8.8.8.8" > /etc/resolv.conf
+    echo "nameserver 1.1.1.1" >> /etc/resolv.conf
+    echo "127.0.0.1 algo" >> /etc/hosts
+    
+    # Update packages manually after ensuring no locks
+    apt-get update || true
+    apt-get upgrade -y || true
+    
     export METHOD=local
     export ONDEMAND_CELLULAR=true
     export ONDEMAND_WIFI=true

tests/pre-deploy.sh

@@ -33,10 +33,7 @@ until dig A +short algo.lxd @10.0.8.1 | grep -vE '^$' > /dev/null; do
   sleep 3
 done
 
-# Ensure DNS is working in the container
-sleep 5
-lxc exec algo -- bash -c "echo 'nameserver 8.8.8.8' > /etc/resolv.conf"
-lxc exec algo -- bash -c "echo 'nameserver 1.1.1.1' >> /etc/resolv.conf"
+# DNS is now configured in cloud-init to avoid race conditions
 
 case ${UBUNTU_VERSION} in
   20.04|22.04)