Hi I try to build and use Caddy with docker, but the container fails to start. Any hint is appreciated!
1. Caddy version (caddy version):
v 2.4.3, with additional plugins: github.com/lucaslorentz/caddy-docker-proxy/plugin/v2 and github.com/caddy-dns/cloudflare
2. How I run Caddy:
Using a Dockerfile, see below.
docker build -t caddy .
docker run -p 80:80 -p 443:443 caddy
a. System environment:
RaspiOs 64bit, 07.05.2021 Index of /raspios_arm64/images/raspios_arm64-2021-05-28
Docker 20.20.8
> Client: Docker Engine - Community
> Version: 20.10.8
> API version: 1.41
> Go version: go1.16.6
> Git commit: 3967b7d
> Built: Fri Jul 30 19:55:21 2021
> OS/Arch: linux/arm64
> Context: default
> Experimental: true
>
> Server: Docker Engine - Community
> Engine:
> Version: 20.10.8
> API version: 1.41 (minimum version 1.12)
> Go version: go1.16.6
> Git commit: 75249d8
> Built: Fri Jul 30 19:53:34 2021
> OS/Arch: linux/arm64
> Experimental: false
> containerd:
> Version: 1.4.9
> GitCommit: e25210fe30a0a703442421b0f60afac609f950a3
> runc:
> Version: 1.0.1
> GitCommit: v1.0.1-0-g4144b63
> docker-init:
> Version: 0.19.0
> GitCommit: de40ad0
b. Command:
-
c. Service/unit/compose file:
Dockerfile:
FROM arm64v8/caddy:2-builder AS builder
RUN xcaddy build \
--with github.com/lucaslorentz/caddy-docker-proxy/plugin/v2 \
--with github.com/caddy-dns/cloudflare
FROM arm64v8/caddy:latest
COPY --from=builder /usr/bin/caddy /usr/bin/caddy
ENTRYPOINT ["/usr/bin/caddy"]
CMD ["docker-proxy"]
d. My complete Caddyfile or JSON config:
none
3. The problem I’m having:
The container crashes on startup.
4. Error messages and/or full log output:
{"level":"info","ts":1629804196.1353955,"logger":"docker-proxy","msg":"Running caddy proxy server"}
{"level":"info","ts":1629804196.138217,"logger":"admin","msg":"admin endpoint started","address":"tcp/localhost:2019","enforce_origin":false,"origins":["127.0.0.1:2019","localhost:2019","[::1]:2019"]}
{"level":"info","ts":1629804196.138529,"msg":"autosaved config (load with --resume flag)","file":"/config/caddy/autosave.json"}
{"level":"info","ts":1629804196.1385593,"logger":"docker-proxy","msg":"Running caddy proxy controller"}
{"level":"error","ts":1629804196.139238,"logger":"docker-proxy","msg":"Docker ping failed","error":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}
docker-proxy: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2021-08-24 12:46:43 CEST; 48min ago
Docs: https://docs.docker.com
Main PID: 3594 (dockerd)
Tasks: 12
CGroup: /system.slice/docker.service
└─3594 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
Aug 24 13:21:02 raspberrypi dockerd[3594]: time="2021-08-24T12:21:02.734342630+01:00" level=info msg="Layer sha256:5424ae6913d0bae9de30f5df668fe5ff3221b9c9d48ef964729107428d1440d7 cleaned up"
Aug 24 13:21:03 raspberrypi dockerd[3594]: time="2021-08-24T12:21:03.178993302+01:00" level=info msg="Layer sha256:5424ae6913d0bae9de30f5df668fe5ff3221b9c9d48ef964729107428d1440d7 cleaned up"
Aug 24 13:21:17 raspberrypi dockerd[3594]: time="2021-08-24T12:21:17.779766654+01:00" level=error msg="Not continuing with pull after error: context canceled"
Aug 24 13:21:17 raspberrypi dockerd[3594]: time="2021-08-24T12:21:17.784425720+01:00" level=info msg="Layer sha256:2fdf4c71f4555d1c1cfb68140701d538b3e2d72163901c6494652d5bf4a54e89 cleaned up"
Aug 24 13:21:17 raspberrypi dockerd[3594]: time="2021-08-24T12:21:17.823742842+01:00" level=info msg="Layer sha256:5230b17992b424cb8ade0a685a849e446d1e05b8a48742693e624c5ba05dde9a cleaned up"
Aug 24 13:21:24 raspberrypi dockerd[3594]: time="2021-08-24T12:21:24.369176894+01:00" level=info msg="ignoring event" container=3da1f0b09508fb52b359a58c39fef80035fe0a31fb9e90eca3e1cefb43db8c60 module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Aug 24 13:21:43 raspberrypi dockerd[3594]: time="2021-08-24T12:21:43.308973096+01:00" level=info msg="ignoring event" container=bc67e1548633043a2a8930096cbf07cb9c45f95c03c96da945530fefc344a663 module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Aug 24 13:22:11 raspberrypi dockerd[3594]: time="2021-08-24T12:22:11.998409815+01:00" level=info msg="ignoring event" container=fe6b9f7ee8e43a8894aa7f84ba40d0eb2de2d584228f2125ec3269c8542b3642 module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Aug 24 13:23:12 raspberrypi dockerd[3594]: time="2021-08-24T12:23:12.027375808+01:00" level=info msg="Layer sha256:5424ae6913d0bae9de30f5df668fe5ff3221b9c9d48ef964729107428d1440d7 cleaned up"
Aug 24 13:23:16 raspberrypi dockerd[3594]: time="2021-08-24T12:23:16.185801188+01:00" level=info msg="ignoring event" container=8df1670ce7ff182911d89f10daadd3d99c5c0c2862fecb5f7a3f4d6c36278113 module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
The “ignoring event”-messages appear, when I attempt to start the container.
5. What I already tried:
As I already wanted to reinstall everything, I started from scratch. The docker deamon seems to be working, docker run hello-world runs without problems.