infra/image: Use SYS_ADMIN capability for server deployment

This adds the capabilities SYS_ADMIN and SYSLOG to the container_create
call in build.sh as long as server deployment has been enabled.

The privileged option has been removed as it is no longer needed.

The hostnamectl-wrapper for the container has been removed as it is no
longer needed.

infra/azure/templates/build_container.yml

@@ -23,7 +23,7 @@ jobs:
   - script: ansible-galaxy collection install containers.podman
     displayName: Install Ansible Galaxy collections
 
-  - script: infra/image/build.sh -p -s ${{ parameters.distro }}
+  - script: infra/image/build.sh -s ${{ parameters.distro }}
     displayName: Build ${{ parameters.distro }} base image
     env:
       ANSIBLE_ROLES_PATH: "${PWD}/roles"

infra/image/build.sh

@@ -15,7 +15,7 @@ valid_distro() {
 usage() {
     local prog="${0##*/}"
     cat << EOF
-usage: ${prog} [-h] [-p] [-n HOSTNAME] [-s] distro
+usage: ${prog} [-h] [-n HOSTNAME] [-s] distro
     ${prog} build a container image to test ansible-freeipa.
 EOF
 }
@@ -41,14 +41,14 @@ cpus="2"
 memory="3g"
 quayname="quay.io/ansible-freeipa/upstream-tests"
 deploy_server="N"
-privileged=""
+deploy_capabilities="SYS_ADMIN,SYSLOG"
+capabilities=""
 
-while getopts ":hn:ps" option
+while getopts ":hn:s" option
 do
     case "${option}" in
         h) help && exit 0 ;;
         n) hostname="${OPTARG}" ;;
-        p) privileged="privileged" ;;
         s) deploy_server="Y" ;;
         *) die -u "Invalid option: ${option}" ;;
     esac
@@ -66,6 +66,8 @@ container_check
 
 if [ "${deploy_server}" == "Y" ]
 then
+    capabilities="${deploy_capabilities}"
+
     [ -n "$(command -v "ansible-playbook")" ] || die "ansible-playbook is required to install FreeIPA."
 
     deploy_playbook="${TOPDIR}/playbooks/install-server.yml"
@@ -89,7 +91,7 @@ container_create "${name}" "${tag}" \
     "hostname=${hostname}" \
     "memory=${memory}" \
     "cpus=${cpus}" \
-    "${privileged}"
+    "${capabilities:+capabilities=$capabilities}"
 container_commit "${name}" "${quayname}:${tag}"
 
 if [ "${deploy_server}" == "Y" ]

infra/image/dockerfile/c10s

@@ -13,12 +13,6 @@ dnf --assumeyes install \
     hostname; \
 rm -rf /var/cache/dnf/;
 
-# Prepare for basic ipa-server-install in container
-# Address failing nis-domainname.service in the ipa-client-install step
-RUN mv /usr/bin/nisdomainname /usr/bin/nisdomainname.orig
-ADD utils/hostnamectl-wrapper /usr/bin/nisdomainname
-RUN chmod a+rx /usr/bin/nisdomainname
-
 RUN (cd /lib/systemd/system/; \
     if [ -e dbus-broker.service ] && [ ! -e dbus.service ]; then \
        ln -s dbus-broker.service dbus.service; \

infra/image/shcontainer

@@ -18,7 +18,7 @@ container_create() {
             hostname=*) extra_opts+=("--${opt}") ;;
             cpus=*) extra_opts+=("--${opt}") ;;
             memory=*) extra_opts+=("--${opt}") ;;
-            privileged) extra_opts+=("--${opt}") ;;
+            capabilities=*) extra_opts+=("--cap-add=${opt##*=}") ;;
             *) log error "container_create: Invalid option: ${opt}" ;;
         esac
     done

infra/image/utils/hostnamectl-wrapper

@@ -1,12 +0,0 @@
-#!/bin/bash -eu
-
-if setpriv --dump | grep -q sys_admin ; then
-	if [[ "$( basename $0 )" =~ "domainname" ]] ; then
-		/usr/bin/hostname -y "$@"
-	else
-		$0.orig "$@"
-	fi
-else
-	echo "Skipping invocation of $0 $@ in unprivileged container." >&2
-	exit
-fi