Schlag-O-Meterer

# running the application
nix run

# get the current counter value
ssh -p 23235 127.0.0.1 "get"

# set the new counter value
ssh -p 23235 127.0.0.1 "set 65"

# increment the counter value
ssh -p 23235 127.0.0.1 "incr 10"

Building and running the container image

# build the container image
nix build .#containerimage

# load the container image into docker
docker load < result

# start the container
docker compose up -d

Configuration

• SSH_HOST: ssh host to use (default localhost)
• SSH_PORT: ssh port to use (default 23235)
• SSH_PUBKEY_FILE: path to file with ssh public keys (ed25519 key type, seperated by \n) which are allowed to increment / edit the counter (default ./.pubkeys). If the file isn't found the application will start, but nobody will be able to modify the counters value.

Example for the SSH_PUBKEY_FILE content

ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAS9nLidDyoFWspHE/IFB7ULMnsLsM+YtGKYreYH7UTa
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEzsOgEiuiTQEUZnMORRmhMHDSAo8VBUl/g55Ec6ZaKM