chore(build): Update Dockerfiles for new cloudbuild configs

See spinnaker/buildtool#14

Dockerfile.compile

@@ -1,6 +1,12 @@
-FROM gcr.io/spinnaker-marketplace/gradle_cache
-MAINTAINER delivery-engineering@netflix.com
-ENV GRADLE_USER_HOME /gradle_cache/.gradle
-COPY . compiled_sources
-WORKDIR compiled_sources
-RUN ./gradlew --no-daemon orca-web:installDist -x test
+FROM ubuntu:eoan
+MAINTAINER sig-platform@spinnaker.io
+
+RUN apt-get update \
+    && apt-get -y upgrade \
+    && apt-get install -y \
+        openjdk-8-jdk-headless \
+    && apt-get clean
+
+ENV GRADLE_USER_HOME /workspace/.gradle
+ENV GRADLE_OPTS -Xmx2048m
+CMD ./gradlew --no-daemon orca-web:installDist -x test

Dockerfile.slim

@@ -1,6 +1,6 @@
 FROM alpine:3.11
-MAINTAINER delivery-engineering@netflix.com
-COPY --from=compile /compiled_sources/orca-web/build/install/orca /opt/orca
+MAINTAINER sig-platform@spinnaker.io
+COPY orca-web/build/install/orca /opt/orca
 RUN apk --no-cache add --update bash openjdk8-jre
 RUN adduser -D -S spinnaker
 USER spinnaker

Dockerfile.ubuntu

@@ -1,7 +1,7 @@
 FROM ubuntu:bionic
-MAINTAINER delivery-engineering@netflix.com
-COPY --from=compile /compiled_sources/orca-web/build/install/orca /opt/orca
+MAINTAINER sig-platform@spinnaker.io
+COPY orca-web/build/install/orca /opt/orca
 RUN apt-get update && apt-get -y install openjdk-8-jre-headless wget
 RUN adduser --disabled-login --system spinnaker
 USER spinnaker
-CMD ["/opt/orca/bin/orca"]
+CMD ["/opt/orca/bin/orca"]