CI: Enable CentOS 7 integration test

Removed `tests_wireless_nm.yml` as github CI has no mac80211_hwsim
kernel module.

Signed-off-by: Gris Ge <fge@redhat.com>

.github/Dockerfile.c7-network-role

@@ -0,0 +1,11 @@
+FROM quay.io/centos/centos:centos7
+
+RUN yum -y install epel-release && \
+    yum -y upgrade && \
+    yum -y install NetworkManager NetworkManager-wifi \
+    procps-ng iproute ansible openssh-server openssh-clients \
+    dnsmasq hostapd wpa_supplicant openssl ethtool iputils && yum clean all
+
+VOLUME [ "/sys/fs/cgroup" ]
+
+CMD ["/usr/sbin/init"]

.github/run_test.sh

@@ -5,6 +5,7 @@ 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"
 
 read -r -d '' TEST_FILES << EOF || :
@@ -21,7 +22,6 @@ tests_ethtool_ring_nm.yml
 tests_ipv6_disabled_nm.yml
 tests_ipv6_nm.yml
 tests_vlan_mtu_nm.yml
-tests_wireless_nm.yml
 EOF
 
 EXEC_PATH=$(dirname "$(realpath "$0")")
@@ -53,6 +53,9 @@ case $OS_TYPE in
     "c8")
         CONTAINER_IMAGE=$C8_CONTAINER_IMAGE
         ;;
+    "c7")
+        CONTAINER_IMAGE=$C7_CONTAINER_IMAGE
+        ;;
     *)
         echo "Unsupported OS type $OS_TYPE"
         exit 1

.github/workflows/integration.yml

@@ -14,6 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - os: "c7"
           - os: "c8"
           - os: "c8s"