How to deploy maven library dependency in Gitlab? - spring-boot

Question

I want to deploy a Maven Dependency package (Spring Boot Library Project) in GitLab, so that I could use this library as a dependency in other projects.
Now I went through the Gitlab Package docs and below are the changes I made as per docs.
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.one</groupId>
<artifactId>common</artifactId>
<version>${env.CI_COMMIT_TAG}</version>
<name>common</name>
<description>Common Library</description>
<properties>
<java.version>11</java.version>
<maven.compiler.version>3.8.1</maven.compiler.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<version>3.1.5</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version>
<optional>true</optional>
<scope>provided</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>gitlab-maven</id>
<!--suppress UnresolvedMavenProperty -->
<url>${env.CI_API_V4_URL}/projects/${env.CI_PROJECT_ID}/packages/maven</url>
</repository>
</repositories>
<distributionManagement>
<repository>
<id>gitlab-maven</id>
<!--suppress UnresolvedMavenProperty -->
<url>${env.CI_API_V4_URL}/projects/${env.CI_PROJECT_ID}/packages/maven</url>
</repository>
<snapshotRepository>
<id>gitlab-maven</id>
<!--suppress UnresolvedMavenProperty -->
<url>${env.CI_API_V4_URL}/projects/${env.CI_PROJECT_ID}/packages/maven</url>
</snapshotRepository>
</distributionManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.version}</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
I also created ci_settings.xml file
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
<servers>
<server>
<id>gitlab-maven</id>
<configuration>
<httpHeaders>
<property>
<name>Job-Token</name>
<value>${env.CI_JOB_TOKEN}</value>
</property>
</httpHeaders>
</configuration>
</server>
</servers>
</settings>
For CI/CD , added .gitlab-ci.yml file
image: maven:latest
stages:
- deploy
variables:
MAVEN_OPTS: "-Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository"
workflow:
rules:
- if: $CI_COMMIT_TAG
deploy-job:
stage: deploy
environment: production
script:
- mvn deploy -s ci_settings.xml
- echo "Application successfully deployed."
Now after creating a new tag 0.0.1 in Gitlab Repository, the pipeline is initiated and package deployed.
The problem is when adding the package dependency
<dependency>
<groupId>com.example.one</groupId>
<artifactId>common</artifactId>
<version>0.0.1</version>
</dependency>
in another project within same group, I get below error
com.example.one:common:jar:0.0.1 was not found in https://repo.maven.apache.org/maven2 during a previous
attempt. This failure was cached in the local repository and resolution is not reattempted until
the update interval of central has elapsed or updates are forced
I also tried adding <repositories> tag in target project, but then I get different error
com.example.one:common:jar:0.0.1 was not found in https://gitlab.com/api/v4/projects/XXXXXX/packages/maven
during a previous attempt. This failure was cached in the local repository and resolution is not
reattempted until the update interval of gitlab-maven has elapsed or updates are forced
I am not sure what I am doing wrong.

Answer 1

I got the solution. Since the package is in a private repository , I was not authenticating the gitlab-maven dependency call.
I added the servers with deploy-token of gitlab in target project maven settings.xml