Linux SDK docker: add Rocky Linux support

tools/docker/natron-sdk-rockylinux8/.gitignore

@@ -0,0 +1,29 @@
+Dockerfile
+build-Linux-installer.sh
+build-Linux-sdk.sh
+build-OSX-installer.sh
+build-Windows-installer.sh
+build-natron.sh
+build-plugins.sh
+checkout-repository.sh
+common.sh
+compiler-common.sh
+createBuildOptionsFile.sh
+ensure-ssh-identity.sh
+gen-natron-doc.sh
+genDllVersions.sh
+gitRepositories.sh
+launchBuildMain.sh
+linuxStartupJenkins.sh
+macStartupJenkins.sh
+manageBuildOptions.sh
+manageLog.sh
+msysStartupJenkins.sh
+push.sh
+runUnitTests.sh
+uploadArtifactsMain.sh
+zip-python.sh
+include
+pkg
+builds
+artifacts

tools/docker/natron-sdk-rockylinux8/build.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+cd `dirname "$0"`
+cp  ../../jenkins/*.sh .
+(cd ../../jenkins/; tar cf - include) | tar xf -
+export ROCKY=8
+LABEL="natrongithub/natron-sdk${UBUNTU+-ubuntu}${UBUNTU:-}${CENTOS+-centos}${CENTOS:-}${ROCKY+-rockylinux}${ROCKY:-}${DTS+-dts}${DTS:-}"
+env GEN_DOCKERFILE=1 ../../jenkins/include/scripts/build-Linux-sdk.sh > Dockerfile
+docker build -t "${LABEL}:latest" .
+#docker build --no-cache -t "${LABEL}:latest" .
+echo "please execute:"
+#echo "docker-squash ${LABEL}:latest"
+echo "docker login"
+echo "docker tag ${LABEL}:latest ${LABEL}:$(date -u +%Y%m%d)"
+echo "docker push ${LABEL}:latest"
+echo "docker push ${LABEL}:$(date -u +%Y%m%d)"

tools/jenkins/include/scripts/build-Linux-sdk.sh

@@ -175,8 +175,9 @@ EOF
         fi
         if [ "${CENTOS:-7}"  -ge 8 ] || [ -n "${ROCKY+x}" ]; then
             # Enable powertools on CentOS >= 8 / Rocky Linux 8
+            # https://www.how2shout.com/linux/how-to-enable-powertools-repository-on-rocky-linux-8/
             # https://computingforgeeks.com/enable-powertools-repository-on-centos-rhel-linux/
-            DTSYUM+="dnf -y install dnf-plugins-core && dnf -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm && dnf config-manager --set-enabled PowerTools && dnf -y groupinstall 'Development Tools' && "
+            DTSYUM+="dnf -y install dnf-plugins-core && dnf -y install epel-release && dnf config-manager --set-enabled powertools && dnf -y update && dnf -y groupinstall 'Development Tools' && "
             YUM_DEVEL_EXTRA=""
         else
             YUM_DEVEL_EXTRA="libXevie-devel libdmx-devel" # only available on CentOS <= 7