[CI:BUILD] GHA to build podman machine images

[NO NEW TESTS NEEDED]

Signed-off-by: Lokesh Mandvekar <[email protected]>

.github/workflows/fcos-machine-images.yml

@@ -0,0 +1,38 @@
+# This should get merged into fcos-podman-next-build.yml once ready
+name: Build machine images with podman-next
+
+on:
+  pull_request:
+    branches:
+      - main
+
+env:
+  IMAGE_NAME: fcos
+  # IMAGE_ARCHS has to be comma separated
+  IMAGE_ARCHS: amd64, arm64
+  IMAGE_REGISTRY: quay.io/podman
+  COPR_OWNER: rhcontainerbot
+  COPR_PROJECT: podman-next
+
+jobs:
+  fcos-podman-next-image-build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Install qemu dependency
+      run: |
+        sudo apt update
+        sudo apt -y install qemu-user-static podman
+
+    - name: Set up cosa
+      run:  |
+        podman pull quay.io/coreos-assembler/coreos-assembler
+        cat ./contrib/podman-next/fcos-podmanimage/cosa-alias >> ~/.bashrc
+        cosa init https://github.com/coreos/fedora-coreos-config
+    
+    - name: Build vhdx and qcow2 images
+      run: |
+        cosa fetch
+        cosa build
+
+        #- name: Push to quay.io/podman/playground

.github/workflows/fcos-podman-next-build.yml

@@ -63,6 +63,11 @@ jobs:
           org.opencontainers.image.description=FCOS image with rpms from rhcontainerbot/podman-next copr
           org.opencontainers.image.revision=${{ github.sha }}
 
+    # TODO: Build qemu and vhdx images with cosa
+    # Is that doable here itself?
+    # 1. Clone cosa
+    # 2. cosa fetch
+    # 3. cosa build qcow, hyperv
 
     - name: Echo Outputs
       run: |

contrib/podman-next/fcos-podmanimage/cosa-alias

@@ -0,0 +1,28 @@
+
+cosa() {
+   env | grep COREOS_ASSEMBLER
+   local -r COREOS_ASSEMBLER_CONTAINER_LATEST="quay.io/coreos-assembler/coreos-assembler:latest"
+   if [[ -z ${COREOS_ASSEMBLER_CONTAINER} ]] && $(podman image exists ${COREOS_ASSEMBLER_CONTAINER_LATEST}); then
+       local -r cosa_build_date_str="$(podman inspect -f "{{.Created}}" ${COREOS_ASSEMBLER_CONTAINER_LATEST} | awk '{print $1}')"
+       local -r cosa_build_date="$(date -d ${cosa_build_date_str} +%s)"
+       if [[ $(date +%s) -ge $((cosa_build_date + 60*60*24*7)) ]] ; then
+         echo -e "\e[0;33m----" >&2
+         echo "The COSA container image is more that a week old and likely outdated." >&2
+         echo "You should pull the latest version with:" >&2
+         echo "podman pull ${COREOS_ASSEMBLER_CONTAINER_LATEST}" >&2
+         echo -e "----\e[0m" >&2
+         sleep 10
+       fi
+   fi
+   set -x
+   podman run --rm -ti --security-opt=label=disable --privileged                                    \
+              --uidmap=1000:0:1 --uidmap=0:1:1000 --uidmap=1001:1001:64536                          \
+              -v=${PWD}:/srv/ --device=/dev/kvm --device=/dev/fuse                                  \
+              --tmpfs=/tmp -v=/var/tmp:/var/tmp --name=cosa                                         \
+              ${COREOS_ASSEMBLER_CONFIG_GIT:+-v=$COREOS_ASSEMBLER_CONFIG_GIT:/srv/src/config/:ro}   \
+              ${COREOS_ASSEMBLER_GIT:+-v=$COREOS_ASSEMBLER_GIT/src/:/usr/lib/coreos-assembler/:ro}  \
+              ${COREOS_ASSEMBLER_ADD_CERTS:+-v=/etc/pki/ca-trust:/etc/pki/ca-trust:ro}              \
+              ${COREOS_ASSEMBLER_CONTAINER_RUNTIME_ARGS}                                            \
+              ${COREOS_ASSEMBLER_CONTAINER:-$COREOS_ASSEMBLER_CONTAINER_LATEST} "$@"
+   rc=$?; set +x; return $rc
+}