docker builds: stop using yum on EL8 derivatives

diff --git a/builder-support/dockerfiles/Dockerfile.target.centos-8 b/builder-support/dockerfiles/Dockerfile.target.centos-8
index 5b89e73e2759710455073f4f36552606aaa38f8f..cc25e21bdc6ce0630a4c86537883fb7fb0e68602 100644 (file)
--- a/builder-support/dockerfiles/Dockerfile.target.centos-8
+++ b/builder-support/dockerfiles/Dockerfile.target.centos-8
@@ -5,7 +5,7 @@
 # Put only the bare minimum of common commands here, without dev tools
 FROM centos:8 as dist-base
 ARG BUILDER_CACHE_BUSTER=
-RUN touch /var/lib/rpm/* && yum install -y epel-release && \
+RUN touch /var/lib/rpm/* && dnf install -y epel-release && \
     dnf install -y 'dnf-command(config-manager)' && \
     dnf config-manager --set-enabled powertools
 

diff --git a/builder-support/dockerfiles/Dockerfile.target.oraclelinux-8 b/builder-support/dockerfiles/Dockerfile.target.oraclelinux-8
index 308be16a35b703e14660e562ca0d851ae6f25dcb..20a1f09e8a628fc4a47af6261d837c2ae4c49fc3 100644 (file)
--- a/builder-support/dockerfiles/Dockerfile.target.oraclelinux-8
+++ b/builder-support/dockerfiles/Dockerfile.target.oraclelinux-8
@@ -5,7 +5,7 @@
 # Put only the bare minimum of common commands here, without dev tools
 FROM oraclelinux:8 as dist-base
 ARG BUILDER_CACHE_BUSTER=
-RUN touch /var/lib/rpm/* && yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm && \
+RUN touch /var/lib/rpm/* && dnf install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm && \
     dnf install -y 'dnf-command(config-manager)' && \
     dnf config-manager --set-enabled ol8_codeready_builder