# Functions
GetLaunchPolicy takes in a map[string] string which should come from image labels, and will try to parse it into a LaunchPolicy.
GetLaunchSpec takes in a metadata server client, reads and parse operator's input to the GCE instance custom metadata and return a LaunchSpec.
# Structs
EnvVar represent a single environment variable key/value pair.
LaunchPolicy contains policies on starting the container.
LaunchSpec contains specification set by the operator who wants to launch a container.
# Type aliases
RestartPolicy is the enum for the container restart policy.