circleci: Retire CentOS jobs

With CentOS reaching EOL at the end of the month and CentOS Stream 9
flaky packaging jobs, we don't need to keep them around. For el9 builds
we rely on the almalinux:9 image.

.circleci/config.yml

@@ -123,7 +123,7 @@ jobs:
   package:
     parameters:
       platform:
-        description: the Linux distribution, with release, e.g. debian:buster, centos:7
+        description: the Linux distribution, with release, e.g. debian:buster, fedora:latest
         type: string
       rclass:
         description: the resource class to use, usually arm.medium or medium
@@ -163,20 +163,14 @@ jobs:
           command: |
             mkdir -p packages
             case "<< parameters.platform >>" in
-                debian:*|ubuntu:*)  EXT=deb ;;
-                centos:*|fedora:*)  EXT=rpm ;;
-                almalinux:*)        EXT=rpm ;;
-                alpine:*)           EXT=apk ;;
+                debian:*|ubuntu:*)    EXT=deb ;;
+                almalinux:*|fedora:*) EXT=rpm ;;
+                alpine:*)             EXT=apk ;;
                 *)
                     echo "unrecognized platform: << parameters.platform >>"
                     exit 1
             esac
 
-            case "<< parameters.platform >>" in
-                centos:stream9)     REPO=quay.io/centos/ ;;
-                *)                  REPO= ;;
-            esac
-
             case "<< parameters.rclass >>" in
                 arm.*)              ARCH=arm64 ;;
                 *)                  ARCH=amd64 ;;
@@ -190,7 +184,7 @@ jobs:
               -e PARAM_RELEASE=$(echo "<< parameters.platform >>" | cut -d: -f2) \
               -v$(pwd):/varnish-cache \
               --platform linux/$ARCH \
-              ${REPO}<< parameters.platform >> \
+              << parameters.platform >> \
               /varnish-cache/.circleci/make-$EXT-packages.sh
       - run:
           name: List created packages
@@ -240,26 +234,23 @@ jobs:
             docker cp /workspace workspace:/
             docker run --volumes-from workspace -w /workspace << parameters.prefix >><< parameters.dist >>:<< parameters.release >> sh -c '
             case "<< parameters.dist >>" in
-            centos|almalinux|fedora)
-                yum groupinstall -y "Development Tools"
+            almalinux|fedora)
+                dnf -y groupinstall "Development Tools"
                 case "<< parameters.dist >>:<< parameters.release >>" in
-                    centos:stream9|almalinux:9)
-                        dnf install -y "dnf-command(config-manager)"
-                        yum config-manager --set-enabled crb
-                        yum install -y diffutils
-                        yum install -y epel-release
+                    almalinux:9)
+                        dnf -y install "dnf-command(config-manager)"
+                        dnf config-manager --set-enabled crb
+                        dnf -y install diffutils
+                        dnf -y install epel-release
                         ;;
                     almalinux:8)
-                        dnf install -y "dnf-command(config-manager)"
-                        yum config-manager --set-enabled powertools
-                        yum install -y diffutils
-                        yum install -y epel-release
-                        ;;
-                    centos:7)
-                        yum install -y epel-release
+                        dnf -y install "dnf-command(config-manager)"
+                        dnf config-manager --set-enabled powertools
+                        dnf -y install diffutils
+                        dnf -y install epel-release
                         ;;
                 esac
-                yum install -y \
+                dnf -y install \
                     cpio \
                     automake \
                     git \
@@ -335,7 +326,7 @@ jobs:
             archlinux)
                 useradd varnish
                 ;;
-            centos|almalinux|fedora)
+            almalinux|fedora)
                 adduser varnish
                 ;;
             *)
@@ -387,15 +378,6 @@ workflows:
         - << pipeline.parameters.build-pkgs >>
         - << pipeline.parameters.dist-url >>
     jobs:
-      - build:
-          name: build_centos_7
-          dist: centos
-          release: "7"
-      - build:
-          name: build_centos_stream_9
-          prefix: quay.io/centos/
-          dist: centos
-          release: stream9
       - build:
           name: build_almalinux_8
           dist: almalinux
@@ -469,8 +451,6 @@ workflows:
                 - debian:buster
                 - debian:bullseye
                 - debian:bookworm
-                - centos:7
-                - centos:stream9
                 - almalinux:8
                 - almalinux:9
                 - fedora:latest

.circleci/make-rpm-packages.sh

@@ -6,30 +6,27 @@ echo "PARAM_RELEASE: $PARAM_RELEASE"
 echo "PARAM_DIST: $PARAM_DIST"
 
 if [ -z "$PARAM_RELEASE" ]; then
-    echo "Env variable PARAM_RELEASE is not set! For example PARAM_RELEASE=stream, for CentOS stream"
+    echo "Env variable PARAM_RELEASE is not set! For example PARAM_RELEASE=9, for almalinux"
     exit 1
 elif [ -z "$PARAM_DIST" ]; then
-    echo "Env variable PARAM_DIST is not set! For example PARAM_DIST=centos"
+    echo "Env variable PARAM_DIST is not set! For example PARAM_DIST=fedora"
     exit 1
 fi
 
 case "$PARAM_DIST:$PARAM_RELEASE" in
     almalinux:9)
-        dnf install -y 'dnf-command(config-manager)'
-        yum config-manager --set-enabled crb
-        yum install -y epel-release
+        dnf -y install 'dnf-command(config-manager)'
+        dnf config-manager --set-enabled crb
+        dnf -y install epel-release
         ;;
-    centos:stream|almalinux:8)
-        dnf install -y 'dnf-command(config-manager)'
-        yum config-manager --set-enabled powertools
-        yum install -y epel-release
-        ;;
-    centos:7)
-        yum install -y epel-release
+    almalinux:8)
+        dnf -y install 'dnf-command(config-manager)'
+        dnf config-manager --set-enabled powertools
+        dnf -y install epel-release
         ;;
 esac
 
-yum install -y rpm-build yum-utils
+dnf -y install rpm-build dnf-utils
 
 export DIST_DIR=build
 
@@ -73,7 +70,7 @@ rpmbuild() {
         "$@"
 }
 
-yum-builddep -y "$DIST_DIR"/redhat/varnish.spec
+dnf builddep -y "$DIST_DIR"/redhat/varnish.spec
 rpmbuild -bs "$DIST_DIR"/redhat/varnish.spec
 rpmbuild --rebuild "$RESULT_DIR"/varnish-*.src.rpm