Get JDK and linux images from container-registry.oracle.com

archetypes/helidon/src/main/archetype/common/files/Dockerfile.jlink.mustache

@@ -1,6 +1,16 @@
 
 # 1st stage, build the app
-FROM maven:3.8.4-openjdk-17-slim as build
+FROM container-registry.oracle.com/java/jdk-no-fee-term:17 as build
+
+WORKDIR /usr/share
+
+# Install maven
+RUN set -x && \
+    curl -O https://archive.apache.org/dist/maven/maven-3/3.8.4/binaries/apache-maven-3.8.4-bin.tar.gz && \
+    tar -xvf apache-maven-*-bin.tar.gz  && \
+    rm apache-maven-*-bin.tar.gz && \
+    mv apache-maven-* maven && \
+    ln -s /usr/share/maven/bin/mvn /bin/
 
 WORKDIR /helidon
 
@@ -19,7 +29,7 @@ RUN echo "done!"
 
 # 2nd stage, build the final image with the JRI built in the 1st stage
 
-FROM debian:stretch-slim
+FROM container-registry.oracle.com/os/oraclelinux:9-slim
 WORKDIR /helidon
 COPY --from=build /helidon/target/{{artifactId}}-jri ./
 ENTRYPOINT ["/bin/bash", "/helidon/bin/start"]

archetypes/helidon/src/main/archetype/common/files/Dockerfile.mustache

@@ -1,6 +1,16 @@
 
 # 1st stage, build the app
-FROM maven:3.8.4-openjdk-17-slim as build
+FROM container-registry.oracle.com/java/jdk-no-fee-term:17 as build
+
+WORKDIR /usr/share
+
+# Install maven
+RUN set -x && \
+    curl -O https://archive.apache.org/dist/maven/maven-3/3.8.4/binaries/apache-maven-3.8.4-bin.tar.gz && \
+    tar -xvf apache-maven-*-bin.tar.gz  && \
+    rm apache-maven-*-bin.tar.gz && \
+    mv apache-maven-* maven && \
+    ln -s /usr/share/maven/bin/mvn /bin/
 
 WORKDIR /helidon
 
@@ -22,7 +32,7 @@ RUN mvn package -DskipTests
 RUN echo "done!"
 
 # 2nd stage, build the runtime image
-FROM openjdk:17-jdk-slim
+FROM container-registry.oracle.com/java/jdk-no-fee-term:17
 WORKDIR /helidon
 
 # Copy the binary built in the 1st stage

docs-internal/examples.md

@@ -0,0 +1,36 @@
+# Helidon Examples
+
+The Helidon examples have moved out of the main Helidon repository (`helidon`) into
+the Helidon examples repository (`helidon-examples`). 
+
+This creates a potential chicken-and-egg issue with the examples validation check that is run on PRs.
+This document describes how we handle that situation.
+
+## Example Validation Check
+
+The primary Helidon repository contains a validation check for examples. This check
+pulls the development branch for the corresponding major version from `helidon-examples`
+(for example `dev-3.x`) and builds it to verify the PR has not broken examples.
+
+This check *is not required*, because there are times when a fix in the primary repository
+might legitimately break an example. Therefore if this check fails it will not block
+merging of the PR.
+
+Of course breaking examples is a red flag that you might be introducing an incompatibility. So
+make sure you fully understand why the example broke and if you are introducing an incompatibility.
+
+## Workflow
+
+Let's assume you need to update the primary repository and an example because your change to the primary
+repository breaks an example. You wish you could do this at the same time in one PR -- but you can't.
+Here is the workflow:
+
+1. Create the PR against the primary repository (`helidon`) with the "breaking" change. The example validation will fail.
+2. Create a PR against the example repository (`helidon-examples`) with the fix for the example. The build check might fail.
+3. Add a comment to the first PR describing why the example check fails, why this isn't a compatiblity issue, and include a link to the second PR (that fixes the example).
+4. Have the first PR reviewed and merge it (the example check will not block merging)
+5. Re-run the build validation on the second PR. It will now pass
+6. Have the second PR reviewed and merge it.
+
+All done!
+

lra/coordinator/server/Dockerfile

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-FROM container-registry.oracle.com/java/openjdk:17 as build
+FROM container-registry.oracle.com/java/jdk-no-fee-term:17 as build
 
 WORKDIR /usr/share
 
@@ -41,7 +41,7 @@ RUN wget -q -O helidon_repo.zip https://github.com/${HELIDON_REPOSITORY}/archive
 RUN mvn install -pl :helidon-lra-coordinator-server -am -DskipTests && \
     echo "Helidon LRA Coordinator build successfully finished"
 
-FROM container-registry.oracle.com/java/openjdk:17
+FROM container-registry.oracle.com/java/jdk-no-fee-term:17
 WORKDIR /helidon
 
 COPY --from=build /helidon/lra/coordinator/server/target/helidon-lra-coordinator-server.jar ./