Docker Library

Welcome to my Docker Library, a storage place for my assets related to my journey around Containers' Land

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References

• Since Docker runtime was deprecated in Kubernetes version 1.20 (Kubernetes is deprecating Docker as a container runtime after v1.20.), I made the Makefile to be compatible also with containerd/nerdctl container engine. (See How To Replace Docker With nerdctl And Rancher Desktop - DevOps ToolKit)
• Docker images are uploaded to the following registries via GitHub Actions:
  • Github
  • DockerHub
• Copy the .env.example file to .env and edit the variables to your needs.
• To pass additional Environment Variables during the execution of the container use .docker/docker.env file.

Image Catalog

• Naming convention: <image-name>.<image-distro>.<build-arch-type>
  • <build-arch-type>: m1 (ARM64) vs x86
    • Why? Docker on M1 Max - Horrible Performance, running x86 Image built into a M1 host requires --platform linux/amd64 is Despite it, the performance won't be good. Solutions:
    • As Base Image use Arm Docker images instead of default x86/amd64
    • Build the image from the source in the M1 host.

swissknife

Images for DevOps Tooling demos.

• asdf
• Rootless images how to share Mounts with the host:
  • Add ability to mount volume as user other than root · Issue #2259 · moby/moby
  • Running a Docker Container with a Custom Non-Root User: Syncing Host and Container Permissions - DEV Community

Stress and Stress-ng

Image for Load Testing including stress and stress-ng

Osixia openldap + Data

Image for Ldap mock testing extending from osixia/docker-openldap. Ref Build an OpenLDAP Docker Image That’s Populated With Users

Configuration examples:

• JXExplorer: Use for troubleshooting purposes. For Kubernetes use [port-fowarding

• Jenkins (JCasC). It assumes ldap-service as the name of the service and kube-system as the namespace.

jenkins:
  securityRealm:
    ldap:
      configurations:
        - managerDN: "cn=admin,dc=acme,dc=org"
          managerPasswordSecret: "admin"
          rootDN: "dc=acme,dc=org"
          server: "ldap-service.NAMESPACE_EXAMPLE.svc.cluster.local"
          userSearch: "cn={0}"

Alternative: Load Data via ldapadd

• Do not copy data into /container/service/slapd/assets/config/bootstrap/ldif
• Add the users/groups with the following command:

ldapadd -h localhost -p 389 -c -x -D cn=admin,dc=acme,dc=org -W -f data.v3.ldif