Minimize the RPM content of the Quarkus container
Even though we use `ubi8-minimal` as the parent of our container, it
still has many RPMs installed that aren't necessary to run the Keycloak
server. Also, since the JDK RPM (that we install on top of
`ubi8-minimal`) is designed for general use, it pulls in more dependency
RPMs than it strictly needs to, like cups and avahi. Keycloak will never
need to access a printer itself!
Trimming down these excess RPMs will improve our CVE statistics with
automated scanners, and therefore let us perform fewer CVE rebuilds.
`ubi8-null.sh` uses the low-level `rpm` command to identify and forcibly
remove dependencies and operating system files that are not required to
boot our Quarkus-based server. This includes `microdnf` and `rpm`
itself! I have preserved bash however, so it's still possible to debug
the container from a shell.
I've created an initial set of allow/disallow lists, that seems to pass
a smoke test (server boots, admin console works). This leaves 37
packages installed, with 96 removed relative to `ubi8-minimal`. We could
go more minimal than this, or less minimal if required. Trial and error
is required.
Closes #16902
2023-02-06 23:28:30 +00:00
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FROM registry.access.redhat.com/ubi8 AS ubi-micro-build
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2022-02-01 08:42:09 +00:00
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2022-03-22 08:22:48 +00:00
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ENV KEYCLOAK_VERSION 999-SNAPSHOT
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2022-02-01 08:42:09 +00:00
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ARG KEYCLOAK_DIST=https://github.com/keycloak/keycloak/releases/download/$KEYCLOAK_VERSION/keycloak-$KEYCLOAK_VERSION.tar.gz
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Minimize the RPM content of the Quarkus container
Even though we use `ubi8-minimal` as the parent of our container, it
still has many RPMs installed that aren't necessary to run the Keycloak
server. Also, since the JDK RPM (that we install on top of
`ubi8-minimal`) is designed for general use, it pulls in more dependency
RPMs than it strictly needs to, like cups and avahi. Keycloak will never
need to access a printer itself!
Trimming down these excess RPMs will improve our CVE statistics with
automated scanners, and therefore let us perform fewer CVE rebuilds.
`ubi8-null.sh` uses the low-level `rpm` command to identify and forcibly
remove dependencies and operating system files that are not required to
boot our Quarkus-based server. This includes `microdnf` and `rpm`
itself! I have preserved bash however, so it's still possible to debug
the container from a shell.
I've created an initial set of allow/disallow lists, that seems to pass
a smoke test (server boots, admin console works). This leaves 37
packages installed, with 96 removed relative to `ubi8-minimal`. We could
go more minimal than this, or less minimal if required. Trial and error
is required.
Closes #16902
2023-02-06 23:28:30 +00:00
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RUN dnf install -y tar gzip
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2022-02-01 08:42:09 +00:00
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ADD $KEYCLOAK_DIST /tmp/keycloak/
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# The next step makes it uniform for local development and upstream built.
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# If it is a local tar archive then it is unpacked, if from remote is just downloaded.
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RUN (cd /tmp/keycloak && \
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tar -xvf /tmp/keycloak/keycloak-*.tar.gz && \
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rm /tmp/keycloak/keycloak-*.tar.gz) || true
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2022-03-17 17:50:38 +00:00
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RUN mv /tmp/keycloak/keycloak-* /opt/keycloak && mkdir -p /opt/keycloak/data
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2022-02-10 07:01:51 +00:00
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RUN chmod -R g+rwX /opt/keycloak
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Minimize the RPM content of the Quarkus container
Even though we use `ubi8-minimal` as the parent of our container, it
still has many RPMs installed that aren't necessary to run the Keycloak
server. Also, since the JDK RPM (that we install on top of
`ubi8-minimal`) is designed for general use, it pulls in more dependency
RPMs than it strictly needs to, like cups and avahi. Keycloak will never
need to access a printer itself!
Trimming down these excess RPMs will improve our CVE statistics with
automated scanners, and therefore let us perform fewer CVE rebuilds.
`ubi8-null.sh` uses the low-level `rpm` command to identify and forcibly
remove dependencies and operating system files that are not required to
boot our Quarkus-based server. This includes `microdnf` and `rpm`
itself! I have preserved bash however, so it's still possible to debug
the container from a shell.
I've created an initial set of allow/disallow lists, that seems to pass
a smoke test (server boots, admin console works). This leaves 37
packages installed, with 96 removed relative to `ubi8-minimal`. We could
go more minimal than this, or less minimal if required. Trial and error
is required.
Closes #16902
2023-02-06 23:28:30 +00:00
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ADD ubi8-null.sh /tmp/
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RUN bash /tmp/ubi8-null.sh java-17-openjdk-headless glibc-langpack-en
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FROM registry.access.redhat.com/ubi8-micro
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2022-04-22 12:57:39 +00:00
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ENV LANG en_US.UTF-8
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2022-02-01 08:42:09 +00:00
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Minimize the RPM content of the Quarkus container
Even though we use `ubi8-minimal` as the parent of our container, it
still has many RPMs installed that aren't necessary to run the Keycloak
server. Also, since the JDK RPM (that we install on top of
`ubi8-minimal`) is designed for general use, it pulls in more dependency
RPMs than it strictly needs to, like cups and avahi. Keycloak will never
need to access a printer itself!
Trimming down these excess RPMs will improve our CVE statistics with
automated scanners, and therefore let us perform fewer CVE rebuilds.
`ubi8-null.sh` uses the low-level `rpm` command to identify and forcibly
remove dependencies and operating system files that are not required to
boot our Quarkus-based server. This includes `microdnf` and `rpm`
itself! I have preserved bash however, so it's still possible to debug
the container from a shell.
I've created an initial set of allow/disallow lists, that seems to pass
a smoke test (server boots, admin console works). This leaves 37
packages installed, with 96 removed relative to `ubi8-minimal`. We could
go more minimal than this, or less minimal if required. Trial and error
is required.
Closes #16902
2023-02-06 23:28:30 +00:00
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COPY --from=ubi-micro-build /tmp/null/rootfs/ /
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COPY --from=ubi-micro-build --chown=1000:0 /opt/keycloak /opt/keycloak
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2022-02-01 08:42:09 +00:00
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Minimize the RPM content of the Quarkus container
Even though we use `ubi8-minimal` as the parent of our container, it
still has many RPMs installed that aren't necessary to run the Keycloak
server. Also, since the JDK RPM (that we install on top of
`ubi8-minimal`) is designed for general use, it pulls in more dependency
RPMs than it strictly needs to, like cups and avahi. Keycloak will never
need to access a printer itself!
Trimming down these excess RPMs will improve our CVE statistics with
automated scanners, and therefore let us perform fewer CVE rebuilds.
`ubi8-null.sh` uses the low-level `rpm` command to identify and forcibly
remove dependencies and operating system files that are not required to
boot our Quarkus-based server. This includes `microdnf` and `rpm`
itself! I have preserved bash however, so it's still possible to debug
the container from a shell.
I've created an initial set of allow/disallow lists, that seems to pass
a smoke test (server boots, admin console works). This leaves 37
packages installed, with 96 removed relative to `ubi8-minimal`. We could
go more minimal than this, or less minimal if required. Trial and error
is required.
Closes #16902
2023-02-06 23:28:30 +00:00
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RUN echo "keycloak:x:0:root" >> /etc/group && \
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2022-02-10 07:01:51 +00:00
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echo "keycloak:x:1000:0:keycloak user:/opt/keycloak:/sbin/nologin" >> /etc/passwd
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2022-02-01 08:42:09 +00:00
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USER 1000
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EXPOSE 8080
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EXPOSE 8443
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ENTRYPOINT [ "/opt/keycloak/bin/kc.sh" ]
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