Updating and deleting custom runtime definitions

If you use a custom runtime image and you want to update or delete its configuration, you must edit the runtime definition for this image.

Before you begin:

Get an authorization token and export it as the TOKEN environment variable. See Generating an API authorization token.
Find your runtime definition and save its GUID as the myRuntimeDefinitionID environment variable. To get the list of available runtime definitions and their GUID’s, run this code:
```
curl -k -X GET -H "Authorization: ZenApiKey ${TOKEN}" "${CPD_URL}/v2/runtime_definitions" | jq -r '.resources[] | "\(.entity.name) -- \(.metadata.guid)"'
```

Updating an existing runtime definition

To update an existing runtime definition, call the update endpoint with the name of the existing runtime definition:

curl -kX PUT  "${CPD_URL}/v2/runtime_definitions/$myRuntimeDefinitionID"  --header "Authorization: ZenApiKey ${TOKEN}" -d @${myRuntimeDefinition}.json

Deleting a runtime definition

To delete runtime definitions that are not in use anymore, call the delete endpoint:

curl -kX DELETE \
"${CPD_URL}/v2/runtime_definitions/${myRuntimeDefinitionID}" \
--header "Authorization: ZenApiKey ${TOKEN}"