What I'm trying to do is have Docker run a TomEE 8.0.0 application with Maven. However when compiling the application, it gives me the error from the title no main manifest attribute, in server.war.
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>server</artifactId>
<version>0.1-SNAPSHOT</version>
<properties>
<maven.compiler.source>12</maven.compiler.source>
<maven.compiler.target>12</maven.compiler.target>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomee.maven</groupId>
<artifactId>tomee-embedded-maven-plugin</artifactId>
<version>8.0.0</version>
<configuration>
<context>ROOT</context>
<containerProperties>
<tomee.mp.scan>true</tomee.mp.scan>
</containerProperties>
</configuration>
<dependencies>
<dependency>
<groupId>org.apache.tomee</groupId>
<artifactId>mp-common</artifactId>
<version>8.0.0</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.10.1</version>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
</plugins>
</build>
<packaging>war</packaging>
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.apache.tomee</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.eclipse.microprofile</groupId>
<artifactId>microprofile</artifactId>
<version>2.0</version>
<type>pom</type>
<scope>provided</scope>
<exclusions>
<exclusion>
<groupId>javax.json</groupId>
<artifactId>javax.json.bind-api</artifactId>
</exclusion>
<exclusion>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
</exclusion>
<exclusion>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
</exclusion>
<exclusion>
<groupId>javax.json</groupId>
<artifactId>javax.json-api</artifactId>
</exclusion>
<exclusion>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.myfaces.core</groupId>
<artifactId>myfaces-api</artifactId>
<version>2.3.6</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.13</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>3.0.0-M5</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
I've tried the following solutions without avail
My question is, because I'm not using any "main" class within the application, but have TomEE running the application, how can I include the manifest.mf correctly?
Or, if this is not the case, how should I start the application, because currently I run the application with Docker through doing the following command
ENTRYPOINT ["java","-jar","server.war"]
Eventually after puzzling around with the hints from Robert Scholte, which helped me in the search of a solution, the indeed problem wasn't so much in the pom.xml, but more so in the setup of the Dockerfile. Within the old Dockerfile I was trying to run the .war as a .jar file.
Slightly following the setup from https://github.com/tomitribe/docker-tomee I ended up setting up the following Dockerfile
FROM maven:3.8.3-jdk-11-slim AS build
RUN mkdir -p /workspace
WORKDIR /workspace
COPY pom.xml /workspace
COPY src /workspace/src
RUN mvn -B -f pom.xml clean package -DskipTests
FROM openjdk:11-jdk-slim
RUN apt-get update; apt-get -y install curl gpg
ENV PATH /workspace/tomee/bin:$PATH
RUN mkdir -p /workspace/tomee
WORKDIR /workspace/tomee
RUN set -xe; \
for key in \
# Matt Hogstrom <hogstrom@apache.org>
9056B710F1E332780DE7AF34CBAEBE39A46C4CA1 \
# Jeremy Whitlock <jwhitlock@apache.org>
F067B8140F5DD80E1D3B5D92318242FE9A0B1183 \
# Richard Kenneth McGuire (CODE SIGNING KEY) <rickmcguire@apache.org>
223D3A74B068ECA354DC385CE126833F9CF64915 \
# Jonathan Gallimore <jgallimore@apache.org>
DBCCD103B8B24F86FFAAB025C8BB472CD297D428 \
# Jarek Gawor (CODE SIGNING KEY) <gawor@apache.org>
7A2744A8A9AAF063C23EB7868EBE7DBE8D050EEF \
# Jarek Gawor <gawor@apache.org>
B8B301E6105DF628076BD92C5483E55897ABD9B9 \
# Andy Gumbrecht (TomEE Code Signing) <agumbrecht@tomitribe.com>
FAA603D58B1BA4EDF65896D0ED340E0E6D545F97 \
# Romain Manni-Bucau <rmannibucau@tomitribe.com>
A57DAF81C1B69921F4BA8723A8DE0A4DB863A7C1 \
# Mark Struberg (Apache) <struberg@apache.org>
82D8419BA697F0E7FB85916EE91287822FDB81B1 \
# David Blevins <dblevins@apache.org>
B7574789F5018690043E6DD9C212662E12F3E1DD \
# Xu Hai Hong (Ivan Xu @ Geronimo) <xhhsld@gmail.com>
C23A3F6F595EBD0F960270CC997C8F1A5BE6E4C1 \
# Jean-Louis Monteiro (CODE SIGNING KEY) <jlmonteiro@apache.org>
678F2D98F1FD9643811639FB622B8F2D043F71D8 \
# Romain Manni-Bucau <rmannibucau@apache.org>
BDD0BBEB753192957EFC5F896A62FC8EF17D8FEF \
# Romain Manni-Bucau <rmannibucau@apache.org>
D11DF12CC2CA4894BDE638B967C1227A2678363C \
# Roberto Cortez (Apache Signing Key) <radcortez@yahoo.com>
C92604B0DEC5C62CFF5801E73D4683C24EDC64D1 \
# David Blevins <dblevins@tomitribe.com>
626C542EDA7C113814B77AF09C04914D63645D20 \
# Jean-Louis Monteiro (CODE SIGNING KEY) <jlmonteiro@apache.org>
3948829384B269D333CC5B98358807C52B4B0E23 \
# Richard Zowalla (Code Signing Key) <rzo1@apache.org>
B83D15E72253ED1104EB4FBBDAB472F0E5B8A431 \
; do \
gpg --batch --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys "$key" || \
gpg --batch --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" ; \
done
ENV TOMEE_VER 8.0.11
ENV TOMEE_BUILD plus
RUN set -x \
&& curl -fSL https://dist.apache.org/repos/dist/release/tomee/tomee-${TOMEE_VER}/apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz.asc -o tomee.tar.gz.asc \
&& curl -fSL https://dist.apache.org/repos/dist/release/tomee/tomee-${TOMEE_VER}/apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz.sha512 -o tomee.tar.gz.sha512 \
&& curl -fSL https://dist.apache.org/repos/dist/release/tomee/tomee-${TOMEE_VER}/apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz -o apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz \
&& gpg --batch --verify tomee.tar.gz.asc apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz \
&& echo `cat tomee.tar.gz.sha512` apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz | sha512sum -c - \
&& tar -zxf apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz \
&& mv apache-tomee-${TOMEE_BUILD}-${TOMEE_VER}/* /workspace/tomee \
&& rm apache-tomee-${TOMEE_VER}-${TOMEE_BUILD}.tar.gz \
&& rm -Rf apache-tomee-${TOMEE_BUILD}-${TOMEE_VER} \
&& rm bin/*.bat \
&& rm bin/*.exe \
&& rm bin/*.tar.gz* \
&& rm tomee.tar.gz.asc \
&& rm tomee.tar.gz*
EXPOSE 8080
CMD ["catalina.sh", "run"]
WORKDIR /workspace
COPY --from=build /workspace/target/*.war /workspace/tomee/webapps/server.war
This basically creates a .war file with maven and then ends up using that .war file in the tomee server by adding it at the end using COPY --from=build /workspace/target/*.war /workspace/tomee/webapps/server.war.