Merge pull request #3109 from wainersm/delint_dockerfiles

Delint dockerfiles

tools/osbuilder/rootfs-builder/centos/Dockerfile.in

@@ -32,7 +32,8 @@ RUN yum -y update && yum install -y \
     sed \
     tar \
     vim \
-    which
+    which && \
+    yum clean all
 
 # This will install the proper packages to build Kata components
 @INSTALL_MUSL@

tools/osbuilder/rootfs-builder/clearlinux/Dockerfile.in

@@ -35,7 +35,8 @@ RUN dnf -y update && dnf install -y \
     systemd \
     tar \
     vim \
-    which
+    which && \
+    dnf clean all
 
 # This will install the proper packages to build Kata components
 @INSTALL_MUSL@

tools/osbuilder/rootfs-builder/fedora/Dockerfile.in

@@ -35,7 +35,8 @@ RUN dnf -y update && dnf install -y \
     systemd \
     tar \
     vim \
-    which
+    which && \
+    dnf clean all
 
 # This will install the proper packages to build Kata components
 @INSTALL_MUSL@

tools/osbuilder/rootfs-builder/gentoo/Dockerfile.in

@@ -4,6 +4,8 @@
 # SPDX-License-Identifier: Apache-2.0
 
 ARG IMAGE_REGISTRY=docker.io
+# stage3-amd64 image has only 'latest' tag so ignore DL3006 rule.
+# hadolint ignore=DL3007
 FROM ${IMAGE_REGISTRY}/gentoo/stage3-amd64:latest
 
 # This dockerfile needs to provide all the componets need to build a rootfs

tools/osbuilder/rootfs-builder/suse/Dockerfile.in

@@ -6,7 +6,7 @@
 ARG IMAGE_REGISTRY=docker.io
 #suse: docker image to be used to create a rootfs
 #@OS_VERSION@: Docker image version to build this dockerfile
-FROM ${IMAGE_REGISTRY}/opensuse/leap
+FROM ${IMAGE_REGISTRY}/opensuse/leap:15.0
 
 # This dockerfile needs to provide all the componets need to build a rootfs
 # Install any package need to create a rootfs (package manager, extra tools)

tools/osbuilder/rootfs-builder/ubuntu/Dockerfile-aarch64.in

@@ -35,7 +35,9 @@ RUN apt-get update && apt-get install -y \
     sed \
     systemd \
     tar \
-    vim
+    vim && \
+    apt-get clean && rm -rf /var/lib/apt/lists/
+
 # This will install the proper packages to build Kata components
 @INSTALL_MUSL@
 @INSTALL_RUST@