ci/gha: switch to or add ubuntu 22.04

For test jobs, add ubuntu 22.04 into the matrix, so we can test of both
cgroup v1 and v2.

For validate jobs, just switch to ubuntu 22.04

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

.github/workflows/test.yml

@@ -19,20 +19,22 @@ env:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-20.04, ubuntu-22.04]
         go-version: [1.19.x, 1.20.x]
         rootless: ["rootless", ""]
         race: ["-race", ""]
-        criu: [""]
-        include:
-          # Also test against latest criu-dev
-          - go-version: 1.19.x
-            rootless: ""
-            race: ""
-            criu: "criu-dev"
+        criu: ["", "criu-dev"]
+        exclude:
+          - criu: criu-dev
+            rootless: rootless
+          - criu: criu-dev
+            go-version: 1.19.x
+          - criu: criu-dev
+            race: -race
+    runs-on: ${{ matrix.os }}
 
     steps:
 
@@ -42,9 +44,10 @@ jobs:
     - name: install deps
       if: matrix.criu == ''
       env:
-        REPO: https://download.opensuse.org/repositories/devel:/tools:/criu/xUbuntu_20.04
+        PREFIX: https://download.opensuse.org/repositories/devel:/tools:/criu/xUbuntu
       run: |
         # criu repo
+        REPO=${PREFIX}_$(echo ${{ matrix.os }} | sed 's/.*-//')
         curl -fSsl $REPO/Release.key | sudo apt-key add -
         echo "deb $REPO/ /" | sudo tee /etc/apt/sources.list.d/criu.list
         sudo apt update
@@ -64,6 +67,7 @@ jobs:
     - name: install go ${{ matrix.go-version }}
       uses: actions/setup-go@v4
       with:
+        cache: false # https://github.com/actions/setup-go/issues/368
         go-version: ${{ matrix.go-version }}
 
     - name: build
@@ -88,6 +92,7 @@ jobs:
         sudo cp $HOME/rootless.key /home/rootless/.ssh/id_ecdsa
         sudo cp $HOME/rootless.key.pub /home/rootless/.ssh/authorized_keys
         sudo chown -R rootless.rootless /home/rootless
+        sudo chmod a+X $HOME # for Ubuntu 22.04
 
     - name: integration test (fs driver)
       run: sudo -E PATH="$PATH" script -e -c 'make local${{ matrix.rootless }}integration'
@@ -101,7 +106,7 @@ jobs:
   # However, we do not have 32-bit ARM CI, so we use i386 for testing 32bit stuff.
   # We are not interested in providing official support for i386.
   cross-i386:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
 

.github/workflows/validate.yml

@@ -18,7 +18,7 @@ jobs:
     permissions:
       contents: read
       pull-requests: read
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
         with:
@@ -40,7 +40,7 @@ jobs:
           golangci-lint run --config .golangci-extra.yml --new-from-rev=HEAD~1 --out-format=github-actions
 
   compile-buildtags:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     env:
       # Don't ignore C warnings. Note that the output of "go env CGO_CFLAGS" by default is "-g -O2", so we keep them.
       CGO_CFLAGS: -g -O2 -Werror
@@ -54,7 +54,7 @@ jobs:
         run: make BUILDTAGS=""
 
   codespell:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v3
     - name: install deps
@@ -64,14 +64,14 @@ jobs:
       run: codespell
 
   shfmt:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v3
     - name: shfmt
       run: make shfmt
 
   shellcheck:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: install shellcheck
@@ -95,7 +95,7 @@ jobs:
         run : ./script/check-config.sh
 
   deps:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v3
     - name: install go
@@ -118,7 +118,7 @@ jobs:
     permissions:
       contents: read
       pull-requests: read
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     # Only check commits on pull requests.
     if: github.event_name == 'pull_request'
     steps:
@@ -136,7 +136,7 @@ jobs:
           error: 'Subject too long (max 72)'
 
   cfmt:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - name: checkout
       uses: actions/checkout@v3
@@ -153,7 +153,7 @@ jobs:
 
 
   release:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - name: checkout
       uses: actions/checkout@v3
@@ -184,7 +184,7 @@ jobs:
 
 
   get-images:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v3
       with: