inteligr8/jdk-hotswap-docker
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added hotswap plugin disable parameterization

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Brian Long
2021-06-01 13:31:11 -04:00
parent 7b23df70db
commit 4850fe8183
4 changed files with 11 additions and 8 deletions
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1
Dockerfile
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@@ -9,6 +9,7 @@ ENV JRE_HOME=/usr/local/lib/jvm/java-openjdk-dcevm
ENV JAVA_OPTS= ENV JAVA_OPTS=
ENV ENABLE_HOTSWAP=true ENV ENABLE_HOTSWAP=true
ENV ENABLE_JDWP=true ENV ENABLE_JDWP=true
ENV DISABLE_HOTSWAP_PLUGINS=
# Install curl # Install curl
RUN apt update && \ RUN apt update && \

15
README.md
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@@ -28,10 +28,11 @@ You may include your own `hotswap-agent.properties` in any of the `classes` fold
You can specify the following environment variables when running the container. You can specify the following environment variables when running the container.
| Environment Variable | Default Value | Description | | Environment Variable | Default Value | Description |
| -------------------- | ------------- | ----------- | | ------------------------- | ------------- | ----------- |
| `JAVA_MEMORY_INIT` | `128m` | The initial and minimum JVM memory. | | `JAVA_MEMORY_INIT` | `128m` | The initial and minimum JVM memory. |
| `JAVA_MEMORY_MAX` | `512m` | The maximum JVM memory allowed. | | `JAVA_MEMORY_MAX` | `512m` | The maximum JVM memory allowed. |
| `ENABLE_HOTSWAP` | `true` | Set to `false` to disable the HotSwap agent. | | `ENABLE_HOTSWAP` | `true` | Set to `false` to disable the HotSwap agent. |
| `ENABLE_JDWP` | `true` | Set to `false` to disable the Java debugger. | | `DISABLE_HOTSWAP_PLUGINS` | | Provide a comma-delimited list of HotSwap plugins to disable. You can find a list of those plugins here: https://github.com/HotswapProjects/HotswapAgent/tree/master/plugin. The name is only specified in the source, like [*Spring*](https://github.com/HotswapProjects/HotswapAgent/blob/master/plugin/hotswap-agent-spring-plugin/src/main/java/org/hotswap/agent/plugin/spring/SpringPlugin.java). |
| `JAVA_OPTS` | | Set to extend the standard `JAVA_OPTS` environment variable. | | `ENABLE_JDWP` | `true` | Set to `false` to disable the Java debugger. |
| `JAVA_OPTS` | | Set to extend the standard `JAVA_OPTS` environment variable. |

2
hotswap-agent.properties
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@@ -45,7 +45,7 @@ webappDir=
# Comma separated list of disabled plugins # Comma separated list of disabled plugins
# Use plugin name - e.g. Hibernate, Spring, ZK, Hotswapper, AnonymousClassPatch, Tomcat, Logback .... # Use plugin name - e.g. Hibernate, Spring, ZK, Hotswapper, AnonymousClassPatch, Tomcat, Logback ....
disabledPlugins= disabledPlugins=${hotswap.disabledPlugins}
# Watch for changed class files on watchResources path and reload class definition in the running application. # Watch for changed class files on watchResources path and reload class definition in the running application.
# #

1
setenv.sh
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@@ -3,6 +3,7 @@ JAVA_OPTS="${JAVA_OPTS} -Xms${JAVA_MEMORY_INIT} -Xmx${JAVA_MEMORY_MAX}"
if [ "${ENABLE_HOTSWAP}" = "true" ]; then if [ "${ENABLE_HOTSWAP}" = "true" ]; then
JAVA_OPTS="${JAVA_OPTS} -XX:HotswapAgent=external -javaagent:/usr/local/lib/jvm/hotswap-agent.jar" JAVA_OPTS="${JAVA_OPTS} -XX:HotswapAgent=external -javaagent:/usr/local/lib/jvm/hotswap-agent.jar"
JAVA_OPTS="${JAVA_OPTS} -Dhotswap.disablePlugins=${DISABLE_HOTSWAP_PLUGINS}"
fi fi
if [ "${ENABLE_JDWP}" = "true" ]; then if [ "${ENABLE_JDWP}" = "true" ]; then