Hi,
I’m trying to build my docker application on Linux, but am having trouble getting buildkit to work. My Dockerfile uses the --mount flag, and I’ve verified it on Windows as working fine.
On my Linux machine, I’ve updated the /etc/docker/daemon.json file, exported the DOCKER_BUILDKIT=1 environment variable, and restarted the docker daemon. However, when I try to build using docker-compose, I’m getting the following error:
root@machine:~/repo# docker-compose up --build -d
...
Step 16/44 : RUN --mount=type=cache,target=/root/.m2 mvn install -P docker
ERROR: Service 'backend' failed to build: the --mount option requires BuildKit. Refer to https://docs.docker.com/go/buildkit/ to learn how to build images with BuildKit enabled
Would appreciate any pointers on how to enable it correctly.
Thanks!
Configuration output:
root@machine:~/repo# echo $DOCKER_BUILDKIT
1
root@machine:~/repo# cat /etc/docker/daemon.json
{
"features": {
"buildkit" : true
}
}
root@machine:~/repo# docker-compose version
docker-compose version 1.25.0, build unknown
docker-py version: 4.1.0
CPython version: 3.8.10
OpenSSL version: OpenSSL 1.1.1f 31 Mar 2020
root@machine:~/repo# docker version
Client: Docker Engine - Community
Version: 20.10.22
API version: 1.41
Go version: go1.18.9
Git commit: 3a2c30b
Built: Thu Dec 15 22:28:08 2022
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.22
API version: 1.41 (minimum version 1.12)
Go version: go1.18.9
Git commit: 42c8b31
Built: Thu Dec 15 22:25:58 2022
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.14
GitCommit: 9ba4b250366a5ddde94bb7c9d1def331423aa323
runc:
Version: 1.1.4
GitCommit: v1.1.4-0-g5fd4c4d
docker-init:
Version: 0.19.0
GitCommit: de40ad0