1) Marvin deployDataCenter.py — Issues & Fixes

1.1 Running marvin from the root

Fix: Run from repo root:

cd ~/lab/cloudstack
python3 tools/marvin/marvin/deployDataCenter.py -i setup/dev/advanced.cfg

1.2 DNS: sim Not Resolvable

Symptom

UnknownHostException: sim: Name or service not known

Fix Options

  • Add to /etc/hosts:
    echo "127.0.0.1 sim" | sudo tee -a /etc/hosts
  • Or change host URLs in advanced.cfg to:
    http://127.0.0.1/c0/h0

1.3 Host Authentication Error (KVM path only)

Symptom

errorText: [Authentication error with host password]

Fix

  • Ensure username/password in advanced.cfg match real SSH login
  • Or prefer SSH key-based auth:
    ssh-copy-id darora@127.0.0.1

1.4 API Auth (401): “Unable to verify credentials”

Symptom

errorCode: 401
errorText: unable to verify user credentials and/or request signature

Root Cause: Missing apiKey and secretKey in mgtSvr block

Fix

"mgtSvr": [{
  "mgtSvrIp": "127.0.0.1",
  "port": 8080,
  "useHttps": false,
  "user": "admin",
  "passwd": "password",
  "domain": "ROOT",
  "apiKey": "YOUR_API_KEY",
  "secretKey": "YOUR_SECRET_KEY",
  "certCAPath": "NA",
  "certPath": "NA"
}]

1.5 NoneType.encode() During Request Signing

Symptom

AttributeError: 'NoneType' object has no attribute 'encode'

Trace

hmac.new(self.securityKey.encode('utf-8'), ...)

Root Cause: self.securityKey is None because Marvin expected:

mgmt_details.apiKey  # attribute

But config passed:

mgmt_details["apiKey"]  # dict access

** Fix — Patch CSTestClient**

In tools/marvin/marvin/cloudstackTestClient.py, inside __createApiClient():

self.__mgmtDetails is missing apiKey and secretKey

2) Pivot to Simulator (Skip KVM for Now)

2.1 Minimal advanced.cfg Changes

"hypervisor": "Simulator",
"url": "http://sim/c0/h0",
"username": "sim",
"password": "sim"

And add to /etc/hosts if needed:

echo "127.0.0.1 sim" | sudo tee -a /etc/hosts

2.2 Deploy Again

python3 tools/marvin/marvin/deployDataCenter.py -i setup/dev/advanced.cfg -d

Logs: /tmp/MarvinLogs/DeployDataCenter__*/runinfo.txt