Added caching / avoid orphans mechanisms

Dockerfiles/web-service/alpine/Dockerfile

@@ -53,8 +53,7 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix && \
     chown --quiet -R zabbix:root /etc/zabbix/ /var/lib/zabbix/ && \
     chgrp -R 0 /etc/zabbix/ /var/lib/zabbix/ && \
-    chmod -R g=u /etc/zabbix/ /var/lib/zabbix/ && \
-    rm -rf /var/cache/apk/*
+    chmod -R g=u /etc/zabbix/ /var/lib/zabbix/
 
 EXPOSE 10053/TCP
 

Dockerfiles/web-service/centos/Dockerfile

@@ -30,7 +30,8 @@ STOPSIGNAL SIGTERM
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/bin/zabbix_web_service", "/usr/sbin/zabbix_web_service"]
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/conf/zabbix_web_service.conf", "/etc/zabbix/zabbix_web_service.conf"]
 
-RUN set -eux && \
+RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
+    set -eux && \
     REPOLIST="baseos,appstream,epel" && \
     INSTALL_PKGS="bash \
             chromium-headless" && \
@@ -60,9 +61,7 @@ RUN set -eux && \
     chown --quiet -R zabbix:root /etc/zabbix/ /var/lib/zabbix/ && \
     chgrp -R 0 /etc/zabbix/ /var/lib/zabbix/ && \
     chmod -R g=u /etc/zabbix/ /var/lib/zabbix/ && \
-    dnf -y clean all && \
-    rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \
-    rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki
+    dnf -y clean all
 
 EXPOSE 10053/TCP
 

Dockerfiles/web-service/ol/Dockerfile

@@ -31,7 +31,8 @@ COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/bin/zabbix_web_service",
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/conf/zabbix_web_service.conf", "/etc/zabbix/zabbix_web_service.conf"]
 COPY ["conf/etc/yum.repos.d/oracle-epel-ol8.repo", "/etc/yum.repos.d/oracle-epel-ol8.repo"]
 
-RUN set -eux && \
+RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
+    set -eux && \
     INSTALL_PKGS="bash \
             chromium-headless" && \
     microdnf -y install \
@@ -40,6 +41,7 @@ RUN set -eux && \
             --enablerepo="ol8_appstream" \
             --enablerepo="ol8_developer_EPEL" \
             --setopt=install_weak_deps=0 \
+            --setopt=keepcache=0 \
             --best \
             --nodocs \
         ${INSTALL_PKGS} && \
@@ -61,9 +63,7 @@ RUN set -eux && \
     chown --quiet -R zabbix:root /etc/zabbix/ /var/lib/zabbix/ && \
     chgrp -R 0 /etc/zabbix/ /var/lib/zabbix/ && \
     chmod -R g=u /etc/zabbix/ /var/lib/zabbix/ && \
-    microdnf -y clean all && \
-    rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \
-    rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki
+    microdnf -y clean all
 
 EXPOSE 10053/TCP
 

Dockerfiles/web-service/rhel/Dockerfile

@@ -49,7 +49,8 @@ COPY ["licenses", "/licenses"]
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/bin/zabbix_web_service", "/usr/sbin/zabbix_web_service"]
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/conf/zabbix_web_service.conf", "/etc/zabbix/zabbix_web_service.conf"]
 
-RUN set -eux && \
+RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
+    set -eux && \
     INSTALL_PKGS="bash \
             shadow-utils \
             chromium-headless" && \
@@ -64,6 +65,7 @@ RUN set -eux && \
             --enablerepo "rhel-8-for-x86_64-appstream-rpms" \
             --enablerepo "epel" \
             --setopt=install_weak_deps=0 \
+            --setopt=keepcache=0 \
             --best \
             --setopt=tsflags=nodocs \
         ${INSTALL_PKGS} && \
@@ -72,6 +74,7 @@ RUN set -eux && \
             --enablerepo "ubi-8-baseos-rpms" \
             --enablerepo "ubi-8-appstream-rpms" \
             --setopt=install_weak_deps=0 \
+            --setopt=keepcache=0 \
             --best \
             --setopt=tsflags=nodocs \
             nss nss-sysinit && \
@@ -89,9 +92,7 @@ RUN set -eux && \
     chown --quiet -R zabbix:root /etc/zabbix/ /var/lib/zabbix/ && \
     chgrp -R 0 /etc/zabbix/ /var/lib/zabbix/ && \
     chmod -R g=u /etc/zabbix/ /var/lib/zabbix/ && \
-    microdnf -y clean all && \
-    rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \
-    rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki
+    microdnf -y clean all
 
 EXPOSE 10053/TCP
 

Dockerfiles/web-service/ubuntu/Dockerfile

@@ -30,7 +30,8 @@ COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/bin/zabbix_web_service",
 COPY --from=builder ["/tmp/zabbix-${ZBX_VERSION}/src/go/conf/zabbix_web_service.conf", "/etc/zabbix/zabbix_web_service.conf"]
 COPY ["conf/etc/apt/preferences.d/chromium.pref", "/etc/apt/preferences.d/chromium.pref"]
 
-RUN set -eux && \
+RUN --mount=type=cache,target=/var/lib/apt/,sharing=locked \
+    set -eux && \
     echo "#!/bin/sh\nexit 101" > /usr/sbin/policy-rc.d && \
     INSTALL_PKGS="bash \
             ca-certificates \
@@ -71,8 +72,7 @@ RUN set -eux && \
             purge \
         ${INSTALL_TEMP_PKGS} && \
     apt-get -y autoremove && \
-    apt-get -y clean && \
-    rm -rf /var/lib/apt/lists/*
+    apt-get -y clean
 
 EXPOSE 10053/TCP