gpg-keygen

GPG Key Generator Dockerfile

Usage

Basic Usage

Display GPG help:

docker run jnovent/gpg-keygen

Generate GPG Key with Volume

To generate a GPG key and save it to your local machine, use a volume mount:

# Create a local directory for GPG keys
mkdir -p ~/.gnupg-docker

# Generate a new GPG key (interactive)
docker run -it -v ~/.gnupg-docker:/root/.gnupg jnovent/gpg-keygen --full-generate-key

# List keys in your local volume
docker run -v ~/.gnupg-docker:/root/.gnupg jnovent/gpg-keygen --list-keys

# Export a public key to your local machine
docker run -v ~/.gnupg-docker:/root/.gnupg jnovent/gpg-keygen --armor --export user@example.com > ~/my-public-key.asc

# Export a private key to your local machine
docker run -v ~/.gnupg-docker:/root/.gnupg jnovent/gpg-keygen --armor --export-secret-keys user@example.com > ~/my-private-key.asc

Important Notes

• The -v ~/.gnupg-docker:/root/.gnupg flag mounts a local directory to the container's GPG home directory
• All keys generated in the container will be persisted in your local ~/.gnupg-docker directory
• You can access and manage these keys even after the container exits
• Use -it flag for interactive commands like --full-generate-key

Advanced Examples

Generate a key with specific parameters:

docker run -it -v ~/.gnupg-docker:/root/.gnupg jnovent/gpg-keygen --gen-key

Sign a file (mount both GPG directory and the file):

docker run -v ~/.gnupg-docker:/root/.gnupg -v $(pwd):/work -w /work jnovent/gpg-keygen --sign myfile.txt

Verify a signature:

docker run -v ~/.gnupg-docker:/root/.gnupg -v $(pwd):/work -w /work jnovent/gpg-keygen --verify myfile.txt.gpg