Lint Dockerfiles

alpine-ansible-latest/Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:latest
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
-RUN apk add --update ansible
+RUN apk add --no-cache ansible
 
 # Install Ansible inventory file
 RUN mkdir -p /etc/ansible \

amazon2-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM amazonlinux:2
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Install Ansible and other requirements.
 RUN rpm -ihv http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

amazon2023-ansible-latest/Dockerfile

@@ -1,26 +1,26 @@
 FROM amazonlinux:2023
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Install Ansible and other requirements.
-RUN yum makecache --timer \
- && yum -y install initscripts \
- && yum -y update \
- && yum -y install \
+RUN yum makecache --timer && \
+    yum -y install initscripts && \
+    yum -y update && \
+    yum -y install \
       sudo \
       which \
       hostname \
       python3 \
-      python3-pip \
- && yum clean all
+      python3-pip && \
+    yum clean all
 
 RUN pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

arch-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM archlinux:latest
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Update, install sudo and systemd, cleanup and remove unneeded unit files.
 RUN  pacman -S -y \

centos7-ansible-latest/Dockerfile

@@ -1,10 +1,9 @@
 FROM centos:7
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 ENV LANG en_US.UTF-8
 ENV LC_ALL en_US.UTF-8
 
-
 # Install systemd -- See https://hub.docker.com/_/centos/
 RUN yum -y update; yum clean all; \
 (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
@@ -38,9 +37,8 @@ RUN yum -y install yum-plugin-copr libseccomp && \
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Upgrade pip so cryptography package works.
-RUN python3 -m pip install --upgrade pip
-
-RUN pip3 install ansible
+RUN python3 -m pip install --upgrade pip && \
+    pip3 install ansible
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

centos8-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM centos:8
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 # Install systemd -- See https://hub.docker.com/_/centos/
@@ -27,15 +27,15 @@ RUN sed -i -e "s|mirrorlist=|#mirrorlist=|g" -e "s|#baseurl=http://mirror.centos
  && yum clean all
 
 # upgrade pip because of the rust dependency error
-RUN python3 -m pip install --upgrade pip
-RUN pip3 install ansible
+RUN python3 -m pip install --upgrade pip && \
+    pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

centosstream8-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM quay.io/centos/centos:stream8
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 # Install systemd -- See https://hub.docker.com/_/centos/
@@ -27,15 +27,15 @@ RUN yum makecache --timer \
  && yum clean all
 
 # upgrade pip because of the rust dependency error
-RUN python3 -m pip install --upgrade pip
-RUN pip3 install ansible
+RUN python3 -m pip install --upgrade pip && \
+   pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

centosstream9-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM quay.io/centos/centos:stream9
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 # Install systemd -- See https://hub.docker.com/_/centos/
@@ -25,15 +25,15 @@ RUN yum makecache --timer \
  && yum clean all
 
 # upgrade pip because of the rust dependency error
-RUN python3 -m pip install --upgrade pip
-RUN pip3 install ansible
+RUN python3 -m pip install --upgrade pip && \
+   pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

debian10-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM debian:buster
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 RUN apt-get update -y  &&  apt-get install --fix-missing && \
     DEBIAN_FRONTEND=noninteractive \

opensuse_tumbleweed-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM opensuse/tumbleweed:latest
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 RUN zypper install -y python ansible dbus-1 systemd-sysvinit shadow sudo
@@ -8,8 +8,8 @@ RUN cp /usr/lib/systemd/system/dbus.service /etc/systemd/system/; \
     sed -i 's/OOMScoreAdjust=-900//' /etc/systemd/system/dbus.service
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

openwrt-ansible-latest/Dockerfile

@@ -1,14 +1,14 @@
 FROM openwrt/rootfs:latest
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 RUN mkdir -p /var/lock && \
     opkg update && \
     if [[ $(opkg list-upgradable) ]]; then opkg list-upgradable | cut -f 1 -d ' ' | xargs opkg upgrade; fi && \
     opkg install python3 python3-pip python3-cryptography \
     sudo bash sed shadow-su shadow-groupadd shadow-useradd shadow-usermod
 
-RUN pip3 install --upgrade pip
-RUN pip3 install ansible
+RUN pip3 install --upgrade pip && \
+    pip3 install ansible
 
 # Install Ansible inventory file
 RUN mkdir -p /etc/ansible \

oracle7-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM oraclelinux:7-slim
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Add Oracle EPEL repo that contains Ansible
 RUN yum-config-manager --add-repo=http://yum.oracle.com/repo/OracleLinux/OL7/developer_EPEL/x86_64/

rocky8-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM rockylinux/rockylinux:8
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 # Install systemd -- See https://hub.docker.com/_/centos/
@@ -26,16 +26,15 @@ RUN yum makecache --timer \
  && yum clean all
 
 # upgrade pip because of the rust dependency error
-RUN pip3 install --upgrade pip
-
-RUN pip3 install ansible
+RUN pip3 install --upgrade pip && \
+    pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

rocky9-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM docker.io/rockylinux/rockylinux:9
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 ENV container=docker
 
 # Install systemd -- See https://hub.docker.com/_/centos/
@@ -18,16 +18,15 @@ RUN yum makecache --timer \
  && yum clean all
 
 # upgrade pip because of the rust dependency error
-RUN pip3 install --upgrade pip
-
-RUN pip3 install ansible
+RUN pip3 install --upgrade pip && \
+    pip3 install ansible
 
 # Disable requiretty.
 RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 
 # Install Ansible inventory file.
-RUN mkdir -p /etc/ansible
-RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+RUN mkdir -p /etc/ansible && \
+    echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 
 # https://molecule.readthedocs.io/en/latest/examples.html#docker-with-non-privileged-user
 # Create `ansible` user with sudo permissions and membership in `DEPLOY_GROUP`

ubuntu1804-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM ubuntu:18.04
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Install dependencies.
 RUN apt-get update \

ubuntu2004-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM ubuntu:20.04
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Install dependencies.
 RUN apt-get update \

ubuntu2204-ansible-latest/Dockerfile

@@ -1,5 +1,5 @@
 FROM ubuntu:22.04
-MAINTAINER Sebastian Gumprich
+LABEL maintainer="Sebastian Gumprich"
 
 # Install dependencies.
 RUN apt-get update \