The SPIFFE Helper is a simple utility for fetching X.509 SVID certificates from the SPIFFE Workload API, launch a process that makes use of the certificates and continuously get new certificates before they expire. The launched process is signaled to reload the certificates when is needed.
$ spiffe-helper -config <config_file>
<config_file>: file path to the configuration file.
If -config is not specified, the default value helper.conf is assumed.
The configuration file is an HCL formatted file that defines the following configurations:
| Configuration | Description | Example Value |
|---|---|---|
agentAddress |
Socket address of SPIRE Agent. | "/tmp/agent.sock" |
cmd |
The path to the process to launch. | "ghostunnel" |
cmdArgs |
The arguments of the process to launch. | "server --listen localhost:8002 --target localhost:8001--keystore certs/svid_key.pem --cacert certs/svid_bundle.pem --allow-uri-san spiffe://example.org/Database" |
certDir |
Directory name to store the fetched certificates. This directory must be created previously. | "certs" |
renewSignal |
The signal that the process to be launched expects to reload the certificates. | "SIGUSR1" |
svidFileName |
File name to be used to store the X.509 SVID public certificate in PEM format. | "svid.pem" |
svidKeyFileName |
File name to be used to store the X.509 SVID private key and public certificate in PEM format. | "svid_key.pem" |
svidBundleFileName |
File name to be used to store the X.509 SVID Bundle in PEM format. | "svid_bundle.pem" |
agentAddress = "/tmp/agent.sock"
cmd = "ghostunnel"
cmdArgs = "server --listen localhost:8002 --target localhost:8001 --keystore certs/svid_key.pem --cacert certs/svid_bundle.pem --allow-uri-san spiffe://example.org/Database"
certDir = "certs"
renewSignal = "SIGUSR1"
svidFileName = "svid.pem"
svidKeyFileName = "svid_key.pem"
svidBundleFileName = "svid_bundle.pem"