packit/tmt: initial enablement

This commit adds a test to vendor HEAD into podman and check if podman
builds successfully.

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

.fmf/version

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+1

.packit.yaml

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+---
+# See the documentation for more information:
+# https://packit.dev/docs/configuration/
+
+jobs:
+  # All tests specified in the `/plans/` subdir
+  # Podman build test for Fedora and CentOS Stream
+  - job: tests
+    trigger: pull_request
+      #notifications:
+      #failure_comment:
+      #  message: "podman e2e tests failed. @containers/packit-build please check."
+    targets: &pr_test_targets
+      - fedora-all
+      - epel-9
+      - epel-8
+    identifier: podman_build_test
+    skip_build: true
+    tmt_plan: "/plans/podman_build_test"
+
+  # Podman build test for RHEL
+  #- job: tests
+  # trigger: pull_request
+  # use_internal_tf: true
+  #   #  notifications:
+  #   #failure_comment:
+  #   #  message: "podman e2e tests failed on RHEL. @containers/packit-build please check."
+  # targets: &pr_test_targets_rhel
+  #   epel-9-x86_64:
+  #      distros: [RHEL-9.2.0-Nightly]
+  #    epel-8-x86_64:
+  #      distros: [RHEL-8.10.0-Nightly]
+  #  identifier: podman_e2e_test_internal
+  #  tmt_plan: "/plans/podman_e2e_test"

plans/main.fmf

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+# tmt does provide the `adjust` attribute to manage distro conditionals, but
+# the bash way has been rather convenient to read, manage and copy-paste
+# Ref: https://tmt.readthedocs.io/en/stable/spec/core.html#adjust
+prepare:
+    - how: shell
+      script: |
+        RHEL_RELEASE=$(rpm --eval %{?rhel})
+        ARCH=$(uname -m)
+        if [ $RHEL_RELEASE -eq 8 ]; then
+            echo "Disabling container-tools module..."
+            dnf -y module disable container-tools
+        fi
+        if [ -f /etc/centos-release ]; then
+            echo "Installing epel-release..."
+            dnf -y install epel-release
+        elif [ $RHEL_RELEASE -ge 8 ]; then
+            echo "Installing epel-release..."
+            dnf -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-$RHEL_RELEASE.noarch.rpm
+            echo "Enabling epel repo..."
+            dnf config-manager --set-enabled epel
+            cat /etc/yum.repos.d/epel.repo
+        fi
+        dnf -y copr enable rhcontainerbot/podman-next
+        dnf config-manager --save --setopt="*:rhcontainerbot:podman-next.priority=5"
+    - how: install
+      package:
+        - golang
+
+/podman_build_test:
+    summary: Run Podman build test
+    execute:
+        how: tmt
+        script: |
+            echo "Checking /etc/redhat-release..."
+            cat /etc/redhat-release
+            echo "Checking installed versions of required packages..."
+            echo "Cloning podman..."
+            git clone https://github.com/containers/podman
+            cd podman
+            echo "Installing dependencies..."
+            dnf -y builddep rpm/podman.spec
+            echo "Vendoring HEAD into podman..."
+            go mod edit -require github.com/containers/common@HEAD
+            make vendor
+            echo "Building podman..."
+            make binaries