add docker-compose to allow easy testing across linux and java versions (#7958)

motivation: setup for testing across different permutations of linux and java versions

changes:
* refactor docker file to allow dynamic versions of centos and java
* add docker compose driver files for centos 6, 7 and java 1.8, 1.9, 1.10, 1.11
* update instructions

docker/Dockerfile-netty-centos6

@@ -1,34 +0,0 @@
-FROM centos:6
-MAINTAINER netty@googlegroups.com
-ENTRYPOINT /bin/bash
-
-ENV SOURCE_DIR $HOME/source
-ENV MAVEN_VERSION 3.5.2
-ENV JAVA_VERSION 1.8.0
-
-RUN mkdir $SOURCE_DIR
-WORKDIR $SOURCE_DIR
-
-# install dependencies
-RUN yum install -y \
- apr-devel \
- autoconf \
- automake \
- git \
- glibc-devel \
- java-$JAVA_VERSION-openjdk-devel \
- libtool \ 
- lksctp-tools \
- lsb-core \
- make \
- openssl-devel \
- tar \
- wget
-
-
-RUN wget -q http://archive.apache.org/dist/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz && tar xfz apache-maven-$MAVEN_VERSION-bin.tar.gz && mv apache-maven-$MAVEN_VERSION /opt/
-
-RUN echo 'PATH=/opt/apache-maven-$MAVEN_VERSION/bin:$PATH' >> ~/.bashrc
-RUN echo 'export JAVA_HOME="/usr/lib/jvm/java-$JAVA_VERSION/"' >> ~/.bashrc
-
-RUN rm -rf $SOURCE_DIR

docker/Dockerfile.centos

@@ -0,0 +1,27 @@
+ARG centos_version=6
+FROM centos:$centos_version
+# needed to do again after FROM due to docker limitation
+ARG centos_version
+
+# install dependencies
+RUN yum install -y \
+ apr-devel \
+ autoconf \
+ automake \
+ git \
+ glibc-devel \
+ libtool \
+ lksctp-tools \
+ lsb-core \
+ make \
+ openssl-devel \
+ tar \
+ wget
+
+ARG java_version=1.8
+ENV JAVA_VERSION $java_version
+# installing java with jabba
+RUN curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | JABBA_COMMAND="install $JAVA_VERSION -o /jdk" bash
+
+RUN echo 'export JAVA_HOME="/jdk"' >> ~/.bashrc
+RUN echo 'PATH=/jdk/bin:$PATH' >> ~/.bashrc

docker/README.md

@@ -1,15 +1,19 @@
-
-** Create a docker image **
-```
-docker build -f Dockerfile-netty-centos6 . -t netty-centos6
-```
-
-** Using the image **
+# Using the docker images
 
 ```
 cd /path/to/netty/
 ```
 
+## centos 6 with java 8
+
 ```
-docker run -it -v ~/.m2:/root/.m2 -v ~/.ssh:/root/.ssh -v ~/.gnupg:/root/.gnupg -v `pwd`:/code -w /code netty-centos6 bash
+docker-compose -f docker/docker-compose.yaml -f docker/docker-compose.centos-6.18.yaml run test
 ```
+
+## centos 7 with java 9
+
+```
+docker-compose -f docker/docker-compose.yaml -f docker/docker-compose.centos-7.19.yaml run test
+```
+
+etc, etc

docker/docker-compose.centos-6.110.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-6-1.10
+    build:
+      args:
+        centos_version : "6"
+        java_version : "1.10-0"
+
+  test:
+    image: netty:centos-6-1.10

docker/docker-compose.centos-6.111.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-6-1.11
+    build:
+      args:
+        centos_version : "6"
+        java_version : "1.11.0-14"
+
+  test:
+    image: netty:centos-6-1.11

docker/docker-compose.centos-6.18.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-6-1.8
+    build:
+      args:
+        centos_version : "6"
+        java_version : "1.8"
+
+  test:
+    image: netty:centos-6-1.8

docker/docker-compose.centos-6.19.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-6-1.9
+    build:
+      args:
+        centos_version : "6"
+        java_version : "zulu@1.9.0"
+
+  test:
+    image: netty:centos-6-1.9

docker/docker-compose.centos-7.110.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-7-1.10
+    build:
+      args:
+        centos_version : "7"
+        java_version : "1.10-0"
+
+  test:
+    image: netty:centos-7-1.10

docker/docker-compose.centos-7.111.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-7-1.11
+    build:
+      args:
+        centos_version : "7"
+        java_version : "1.11.0-14"
+
+  test:
+    image: netty:centos-7-1.11

docker/docker-compose.centos-7.18.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-7-1.8
+    build:
+      args:
+        centos_version : "7"
+        java_version : "1.8"
+
+  test:
+    image: netty:centos-7-1.8

docker/docker-compose.centos-7.19.yaml

@@ -0,0 +1,13 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:centos-7-1.9
+    build:
+      args:
+        centos_version : "7"
+        java_version : "zulu@1.9.0"
+
+  test:
+    image: netty:centos-7-1.9

docker/docker-compose.yaml

@@ -0,0 +1,23 @@
+version: "3"
+
+services:
+
+  runtime-setup:
+    image: netty:default
+    build:
+      context: .
+      dockerfile: Dockerfile.centos
+
+  common: &common
+    image: netty:default
+    depends_on: [runtime-setup]
+    volumes:
+      - ~/.ssh:/root/.ssh
+      - ~/.m2:/root/.m2
+      - ~/.gnupg:/root/.gnupg
+      - ..:/code
+    working_dir: /code
+
+  test:
+    <<: *common
+    command: /bin/bash -cl "./mvnw clean package -Dio.netty.testsuite.badHost=netty.io -DskipOsgiTestsuite=true"