Remove CentOS8 GitHub actions CI Tests

As CentOS8 is already EOL, remove CentOS8 CI integration tests.

Signed-off-by: Wen Liang <liangwen12year@gmail.com>

.github/Dockerfile.c8-network-role

@@ -1,12 +0,0 @@
-FROM quay.io/centos/centos:8
-
-RUN dnf -y install dnf-plugins-core epel-release && \
-    dnf config-manager --set-enabled powertools && \
-    dnf -y upgrade && \
-    dnf -y install NetworkManager NetworkManager-wifi \
-    procps-ng iproute ansible openssh-server openssh-clients systemd-udev \
-    dnsmasq hostapd wpa_supplicant openssl ethtool iputils python3-gobject-base
-
-VOLUME [ "/sys/fs/cgroup" ]
-
-CMD ["/usr/sbin/init"]

.github/run_test.sh

@@ -4,7 +4,6 @@ set -euo pipefail
 
 TEST_SOURCE_DIR="/network-role"
 C8S_CONTAINER_IMAGE="quay.io/linux-system-roles/c8s-network-role"
-C8_CONTAINER_IMAGE="quay.io/linux-system-roles/c8-network-role"
 C7_CONTAINER_IMAGE="quay.io/linux-system-roles/c7-network-role"
 PODMAN_OPTS="--systemd=true --privileged"
 
@@ -31,8 +30,8 @@ EOF
 EXEC_PATH=$(dirname "$(realpath "$0")")
 PROJECT_PATH=$(dirname "$(realpath "$EXEC_PATH../")")
 
-# Default to CentOS 8
-OS_TYPE=c8
+# Default
+OS_TYPE=c8s
 
 while [[ $# -gt 0 ]]; do
     key="$1"
@@ -54,9 +53,6 @@ case $OS_TYPE in
     "c8s")
         CONTAINER_IMAGE=$C8S_CONTAINER_IMAGE
         ;;
-    "c8")
-        CONTAINER_IMAGE=$C8_CONTAINER_IMAGE
-        ;;
     "c7")
         CONTAINER_IMAGE=$C7_CONTAINER_IMAGE
         ;;

.github/workflows/integration.yml

@@ -15,7 +15,6 @@ jobs:
       matrix:
         include:
           - os: "c7"
-          - os: "c8"
           - os: "c8s"
 
     steps: