chore(build): Update Dockerfiles for new cloudbuild configs (#3450)

* chore(build): Update Dockerfiles for new cloudbuild configs

See spinnaker/buildtool#14

* chore(dockerfile): use openjdk:8 instead of rolling our own

Dockerfile.compile

@@ -1,6 +1,5 @@
-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 openjdk:8
+MAINTAINER sig-platform@spinnaker.io
+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
 RUN mkdir plugins && chown -R 100:100 plugins

Dockerfile.ubuntu

@@ -1,6 +1,6 @@
 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
 RUN mkdir plugins && chown -R 102:nogroup plugins