enterz1983/sshregen repository overview

⁠SSH server hostkey regenerate for Azure iotEdge

When accidentally removed the SSH host keys from docker host, but Azure IoTEdge is still available. This image regenerates SSH host keys in a mapped volume.

⁠Usage

To run one time on the /etc folder. docker run --rm --privileged -v /etc:/home/etc enterz1983/sshregen

Be aware, this runs privileged!

Script generates:

• /etc/ssh/ssh_host_dsa_key
• /etc/ssh/ssh_host_rsa_key
• /etc/ssh/ssh_host_ecdsa_key
• /etc/ssh/ssh_host_ed25519_key

⁠IoT Edge

Create a layered deployment for your IoT Edge environment. This sample creates a deployment with priviledged flag and mounts the host /etc in the container. Although the script runs idempotent (no overwrite of existing key files), it only runs once!

{
  "content": {
    "modulesContent": {
      "$edgeAgent": {
        "properties.desired.modules.sshRegen": {
          "version": "1.0",
          "type": "docker",
          "status": "running",
          "restartPolicy": "never",
          "settings": {
            "image": "enterz1983/sshregen:latest",
            "createOptions": "{\"NetworkingConfig\":{\"EndpointsConfig\":{\"host\":{}}},\"HostConfig\":{\"Privileged\":\"true\",\"Binds\":[\"/etc:/home/etc/\"],\"LogConfig\":{\"Type\":\"json-file\",\"Config\":{\"max-size\":\"10m\",\"max-file\":\"3\"}}}}"
          }
        }
      }
    }
  }
}