docker command not found in Kubernetes runner

[Hanz Yu]

I was expecting able to call docker on workspace runner running in K8s, but it showed this error:

bash: docker: command not found

I have verified the runner is Online and below is the pipeline script:

pipelines:

custom:

pipeline:

- step:

name: Step1

size: 4x # default 4gb, 8x for 32gb

runs-on: 

- 'self.hosted'

- 'linux'

script:

- echo "This step will run on a self hosted runner with 16 GB of memory.";

- docker --version

- step:

name: Step2

script:

- echo "This step will run on Atlassian's infrastructure as usual.";

image used: 

image: docker-public.packages.atlassian.com/sox/atlassian/bitbucket-pipelines-runner

Pipeline:
https://bitbucket.org/acn-ce/temp-hanz/pipelines/results/8

Similar issue, but is not K8s runner:

https://confluence.atlassian.com/bbkb/docker-command-not-found-error-while-running-docker-commands-in-self-hosted-runner-1206785605.html

kubectl -n bitbucket-runner exec runner-vq4rw -c runner -- bash -c "ls /tmp/3d518a01-e540-5a30-836b-98973c55e83a"

docker

runner.log

kubectl -n bitbucket-runner exec runner-vq4rw -c runner -- bash -c "cat /tmp/3d518a01-e540-5a30-836b-98973c55e83a/runner.log"

[2023-07-20 07:38:19,930] Runner version: 1.489

[2023-07-20 07:38:19,976] Runner runtime: linux-docker

[2023-07-20 07:38:22,967] Copying Docker cli to working directory.

[2023-07-20 07:38:23,305] Starting websocket listening to RUNNER_UPDATED events.

[2023-07-20 07:38:23,502] Updating runner status to "ONLINE" and checking for new steps assigned to the runner after 0 seconds and then every 30 seconds.

[2023-07-20 07:38:23,752] Updating runner state to "ONLINE".

[2023-07-20 07:38:53,505] Updating runner state to "ONLINE".

[2023-07-20 07:39:23,505] Updating runner state to "ONLINE".

[2023-07-20 07:39:53,505] Updating runner state to "ONLINE".

. . . 

[Hanz Yu · Accepted solution]

I got it I should specify a dind image:

https://github.com/rewardenv/docker

https://janosmiko.com/blog/2021-09-08-bitbucket-pipelines-runners-in-k8s/