(default `istio-ca:8060`)</td></tr><tr><td><code>--cert-chain &lt;string&gt;</code></td><td>Node Agent identity cert file (default `/etc/certs/cert-chain.pem`)</td></tr><tr><td><code>--env &lt;string&gt;</code></td><td>Node Environment : unspecified | onprem | gcp | aws (default `unspecified`)</td></tr><tr><td><code>--key &lt;string&gt;</code></td><td>Node Agent private key file (default `/etc/certs/key.pem`)</td></tr><tr><td><code>--key-size &lt;int&gt;</code></td><td>Size of generated private key (default