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k3d-argocd-docker a.k.a. k8sage

Kubernetes with Argo CD as a container. Can be used to test infrastructure code locally.

Setup

Summary

git clone https://github.com/argoproj/argocd-example-apps.git applications/example/
wget -qO- https://github.com/nedix/k3d-argocd-docker/archive/refs/heads/main.zip | tar xzOf - k3d-argocd-docker-main/applications.yaml.example > applications.yaml
docker volume create k8sage
docker run --rm --pull always -d --name k8sage \
    -v k8sage:/mnt/docker \
    -v ${PWD}/applications:/mnt/applications \
    --mount "type=bind,source=${PWD}/applications.yaml,target=/mnt/config/applications.yaml" \
    -p 443:443 \
    -p 6445:6445 \
    --privileged \
    ghcr.io/nedix/k3d-argocd-docker

Steps

Mount a named volume for Docker in Docker cache

docker volume create k8sage

Flags:

-v k8sage:/mnt/docker

Mount your application repository on /mnt/applications

git clone https://github.com/argoproj/argocd-example-apps.git applications/example/

Flags:

-v ${PWD}/applications:/mnt/applications

Mount applications.yaml configuration file on /mnt/config/applications.yaml

wget -qO- https://github.com/nedix/k3d-argocd-docker/archive/refs/heads/main.zip | tar xzOf - k3d-argocd-docker-main/applications.yaml.example > applications.yaml

Flags:

--mount "type=bind,source=${PWD}/applications.yaml,target=/mnt/config/applications.yaml"

Forward network ports

Flags:

-p 443:443

-p 6445:6445

Give privileges for Docker in Docker

Flags:

--privileged

Usage

Argo CD GUI

https://localhost:443

Login: admin:admin

Kubernetes API

Copy Kubernetes config to your host

docker cp k8sage:/etc/k8sage/cluster-config/kube/config.yaml ${PWD}/kubeconfig.yaml

Replace key clusters.0.cluster.certificate-authority-data

insecure-skip-tls-verify: true

Attribution