Test centos-7 vault

Author: jeroen

.github/workflows/docker.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['rocky-8', 'rocky-9', 'debian-11', 'debian-12', 'debian-13', 'fedora', 'ubuntu-20.04', 'ubuntu-22.04', 'ubuntu-24.04']
+        os: ['centos-7', 'rocky-8', 'rocky-9', 'debian-11', 'debian-12', 'debian-13', 'fedora', 'ubuntu-20.04', 'ubuntu-22.04', 'ubuntu-24.04']
     steps:
       - name: Checkout
         uses: actions/checkout@v4

docker/centos-7/Dockerfile

@@ -3,8 +3,11 @@ FROM centos:centos7
 ARG BRANCH=master
 ARG RSTUDIO=2023.12.0-369
 
-# Enable EPEL
+# Enable Vault and install EPEL
 RUN \
+  sed -i.bak 's@^mirrorlist@#mirrorlist@g' /etc/yum.repos.d/*.repo &&\
+  sed -i.bak 's@#baseurl=http://mirror.centos.org@baseurl=http://vault.centos.org@g' /etc/yum.repos.d/*.repo &&\
+  yum update -y &&\
   yum install -y epel-release
 
 # Install.