SSH into AZDO hosted agents

README.md

1. Create a variable group (e.g. iwana-private)
2. Add your NGROK_AUTHTOKEN in there
3. Put your ssh key in pipeline (${your_ssh_key_here})
4. Run the pipeline

To ssh into it, get the ngrok endpoint from https://dashboard.ngrok.com/endpoints/status

then ssh into it:

ssh -o GlobalKnownHostsFile=/dev/null -o UserKnownHostsFile=/dev/null vsts@${ngrok_domain} -p${ngrok_port}

To end session:

sudo bash -c 'pkill -x sshd; pkill -x ngrok;'

azure-pipeline.yml

variables:
- group: iwana-private

stages:
  - stage: stage_main
    displayName: main stage
    jobs:
      - job: job_main
        displayName: main job
        pool:
          vmImage: "ubuntu-20.04"
        steps:
          - bash: |
              set -x
              id
              chmod -R go-rwx ~/
              set -eo pipefail
              sudo apt-get install -y socat openssh-server unzip wget
              sudo mkdir -vp /run/sshd
              sudo /usr/sbin/sshd -D &
              wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
              unzip ngrok-stable-linux-amd64.zip
              chmod +x ngrok
              set +x
              ./ngrok authtoken ${NGROK_AUTHTOKEN}
              set -x
              mkdir -vp ~/.ssh/
              echo "${your_ssh_key_here}" >> ~/.ssh/authorized_keys
              chmod -vR go-rwx ~/.ssh/ || :
              cat ~/.ssh/authorized_keys
              ./ngrok tcp 22
            env:
              NGROK_AUTHTOKEN: $(NGROK_AUTHTOKEN)