Docker

Last update: 05. March 2023 (Created: 19. February 2023)

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Docker

• Docker Desktop Download: https://www.docker.com/products/docker-desktop/
• Docker Official Dokumentation: https://docs.docker.com

Docker Registry

"The Registry is a stateless, highly scalable server side application that stores and lets you distribute Docker images."

See: https://docs.docker.com/registry/

TODO: How to set up docker registry?

When pulling a docker image on Windows the following error can occur: Error response from daemon: Get "https://<address>:<port>/v2/": x509: certificate signed by unknown authority. To generate a certificate use keytool -printcert -sslserver nexus.sie.local:18079 -rfc.

To fix this the certificate of the server hosting the registry must be added to the "Trusted Root Certificates" in the certmgr.msc. In there right click on "Trusted Root Certificates" -> "All Tasks" -> "Import" and the choose the certificate file and then add it. Then restart Docker (best done in Task Manager).

To build a Docker container in Jenkins refer to Build docker container and push to own registry.

Other

docker cp will keep the original file owner. Better use SCP:

• https://www.linux.com/training-tutorials/ssh-scp-without-password-remote-host-look-ma-no-password/

• https://alvinalexander.com/linux-unix/how-use-scp-without-password-backups-copy/

• Docker self-hosted registry: https://docs.docker.com/registry/deploying/

• Docker certificates: https://docs.docker.com/engine/security/certificates/

Docker x509 error fix on windows: - Import certificate into windows: https://support.securly.com/hc/en-us/articles/360026808753-How-do-I-manually-install-the-Securly-SSL-certificate-on-Windows

Docker consumes a lot of RAM (vmmem.exe): https://www.koskila.net/how-to-solve-vmmem-consuming-ungodly-amounts-of-ram-when-running-docker-on-wsl/

Ports are not available (Docker Desktop Windows): https://www.herlitz.io/2020/12/01/docker-error-ports-are-not-available-on-windows-10/

net stop winnat
net start winnat

• copy failed file not found in build context: https://stackoverflow.com/a/69852718
• docker context is the directory the Dockerfile is located in.
• docker context is the argument at the end (here .): docker build -f dockerfile -t container:v1 .