how to find keyring in docker-compose wallet?

[dckc]

In discord, Zerek asked how to find it; they gave some motivation:

for custody companies who have an offline signature process this is very useful to get easy access these information to match if everything is correct

for reference: https://github.com/Agoric/agoric-sdk/wiki/Setting-up-an-Agoric-Dapp-Client-with-docker-compose

[dckc]

I think I found the answer; details are below. @tgrecojs maybe you can explain?

$ AG_SOLO_BASEDIR=/tmp/solo123 ~/projects/agoric-sdk/packages/solo/bin/ag-solo setup --netconfig=${NETCONFIG_URL:-https://devnet.agoric.net/network-config}
...
ctrl-c
...

$ agd --home=/tmp/solo123/ag-cosmos-helper-statedir --keyring-backend=test keys list
- name: ag-solo
  type: local
  address: agoric1xm0yqt0ylvppsutz8ezggnhyvd2rufkwp5dkj8
  pubkey: '{"@type":"/cosmos.crypto.secp256k1.PubKey","key":"A4o8sfsY2DdX7L5/XkWpKvU7ccwydX4zAgYaz6c/1Eaf"}'
  mnemonic: ""

also note in docker-compose.yml

    environment:
      - "AG_SOLO_BASEDIR=/state/${SOLO_HOME:-202205280523443a4bb7}"

[Ekzer]

That's interesting, thank you for this first answer

[Ekzer]

So I guess we could put somewhere in doc that --home option is $AG_SOLO_BASEDIR/ag-cosmos-helper-statedir and needs --keyring-backed=test option as well

[Ekzer]

I finally found how to retrieve private key.
To precise something first :
--keyring-backend=test means that the privateKey is password less. According to cosmos documentation https://docs.cosmos.network/master/run-node/keyring.html#the-test-backend

When you want to get private key, you have 2 ways :

agd keys export ag-solo --home=/state/202205280523443a4bb7/ag-cosmos-helper-statedir --keyring-backend=test --unarmored-hex --unsafe will export to HEX format

OR

agd keys export ag-solo --home=/state/202205280523443a4bb7/ag-cosmos-helper-statedir --keyring-backend=test will ask for passphrase and then will generate an encrypted version