Drone Pipeline : Drone Cache mount path for Maven Repository not able to resolve - maven-3

Question

I'm new to Drone pipeline and is interested to use it in my current project for CICD.
My project tech stack is as follows:
Java
Spring Boot
Maven
I have created a sample drone pipeline, but not able to cache the maven dependencies which is downloaded and stored in .m2 folder.
Always say the mount path is not available or not found. Please find the screen shot for the same:
Drone mount path issue
Not sure of the path to provide here. Can someone help me to understand the mount path which we need to provide to cache all the dependencies in .m2 path.
Adding the pipeline information below:
kind: pipeline
type: docker
name: config-server
steps:
name: restore-cache
image: meltwater/drone-cache
pull: if-not-exists
settings:
backend: "filesystem"
restore: true
cache_key: "volume"
archive_format: "gzip"
mount:
- ./target
- /root/.m2/repository
volumes:
name: cache
path: /tmp/cache
name: build
image: maven:3.8.3-openjdk-17
pull: if-not-exists
environment:
M2_HOME: /usr/share/maven
MAVEN_CONFIG: /root/.m2
commands:
mvn clean install -DskipTests=true -B -V
volumes:
name: cache
path: /tmp/cache
name: rebuild-cache
image: meltwater/drone-cache
pull: if-not-exists
settings:
backend: "filesystem"
rebuild: true
cache_key: "volume"
archive_format: "gzip"
mount:
- ./target
- /root/.m2/repository
volumes:
name: cache
path: /tmp/cache
trigger:
branch:
main
event:
push
volumes:
name: cache
host:
path: /var/lib/cache
Thanks in advance..

Answer 1

Resolved the issue. Please find the solution below and working drone pipeline.
kind: pipeline
type: docker
name: data-importer
steps:
- name: restore-cache
image: meltwater/drone-cache
pull: if-not-exists
settings:
backend: "filesystem"
restore: true
ttl: 1
cache_key: "volume"
archive_format: "gzip"
mount:
- ./.m2/repository
volumes:
- name: cache
path: /tmp/cache
- name: maven-build
image: maven:3.8.6-amazoncorretto-11
pull: if-not-exists
commands:
- mvn clean install -DskipTests=true -Dmaven.repo.local=.m2/repository -B -V
volumes:
- name: cache
path: /tmp/cache
- name: rebuild-cache
image: meltwater/drone-cache
pull: if-not-exists
settings:
backend: "filesystem"
rebuild: true
cache_key: "volume"
archive_format: "gzip"
ttl: 1
mount:
- ./.m2/repository
volumes:
- name: cache
path: /tmp/cache
trigger:
branch:
- main
- feature/*
event:
- push
volumes:
- name: cache
host:
path: /var/lib/cache