feat: add ubuntu-18.04

.github/workflows/build-and-push.yml

@@ -41,6 +41,9 @@ jobs:
           - tag: 'rockylinux-9'
             dockerfile: 'rockylinux/9.Dockerfile'
             platforms: linux/amd64,linux/arm64
+          - tag: 'ubuntu-18.04'
+            dockerfile: 'ubuntu/18.04.Dockerfile'
+            platforms: linux/amd64,linux/arm64
           - tag: 'ubuntu-20.04'
             dockerfile: 'ubuntu/20.04.Dockerfile'
             platforms: linux/amd64,linux/arm64

README.md

@@ -25,6 +25,7 @@ Rocky Linux:
 
 Ubuntu:
 
+- `ubuntu-18.04` (`linux/amd64`,`linux/arm64`)
 - `ubuntu-20.04` (`linux/amd64`,`linux/arm64`)
 - `ubuntu-22.04` (`linux/amd64`,`linux/arm64`)
 

ubuntu/18.04.Dockerfile

@@ -0,0 +1,22 @@
+FROM ubuntu:18.04
+
+LABEL maintainer='Anton Melekhin'
+
+ENV container=docker \
+    DEBIAN_FRONTEND=noninteractive
+
+RUN INSTALL_PKGS='ca-certificates gnupg iproute2 python3 python3-apt sudo systemd' \
+    && apt-get update && apt-get install $INSTALL_PKGS -y --no-install-recommends \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+RUN find /etc/systemd/system \
+    /lib/systemd/system \
+    -path '*.wants/*' \
+    -not -name '*journald*' \
+    -not -name '*systemd-tmpfiles*' \
+    -not -name '*systemd-user-sessions*' \
+    -print0 | xargs -0 rm -vf
+
+VOLUME [ "/sys/fs/cgroup" ]
+
+ENTRYPOINT [ "/lib/systemd/systemd" ]