simple.prov

#! /bin/bash

# A skeleton/template for a simple provider written in bash. Make sure to
# make this file executable when turning it into your 'real' provider

# Very important so that sorting goes right
export LANG=C

# die MESSAGE
# Print an error message and exit
die() {
    echo "ral_error: $1"
    echo "ral_eom"
    exit 0
}

describe() {
    suitable=false # Add code here that determines whether this provider
                   # can possible work or not

    cat <<EOF
---
provider:
  type: example
  invoke: simple
  actions: [list,find,update]
  suitable: ${suitable}
  attributes:
    name:
      type: string
    attr1:
      type: enum[val1, val2, val3]
    attr2:
      type: string
EOF
}

list() {
    echo '# simple'

    # Get all the resources this provider can manage and print them out

    # loop over all resources, and output each one
    #   echo "name: $the_name"
    #   echo "attr1: $value1"
    #   echo "attr2: $value2"
}

# Determine the state of the resource with name $name
find_state() {
    [ -z "$name" ] && die "find: missing a name"

    # lookup resource $name and set variables for each of its
    # properties. By convention, call these variables is_property, i.e.,
    # for property 'enable' use $is_enable

    # If there is no property $name, set variable is_unknown
}

find() {
    echo "# simple"
    find_state
    echo "name: $name"
    if [ -z "$is_unknown" ]
    then
        echo "attr1: $is_prop1"
        echo "attr2: $is_prop2"
    else
        echo "ral_unknown: true"
    fi
}

# Convenience wrapper to make supporting noop easier
run() {
    if [ -z "$ral_noop" ]
    then
        msg=$("$@" 2>&1)
        rc=$?
        if [ $rc != 0 ]; then
            die "$msg"
        fi
    fi
}

update() {
    echo '# simple'
    find_state

    if [ -n "$is_unknown" ]
    then
        echo "ral_unknown: true"
        exit 0
    fi

    # For each property prop, check whether $prop is different from
    # $is_prop and change it if needed.
    # If a change is made, output the following for each changed property:
    #
    #  echo "prop: $prop"
    #  echo "ral_was: $is_prop"
}

eval "$@"

case "$ral_action"
in
    list) list;;
    find) find;;
    update) update;;
    describe) describe;;
    *)
        die "Unknown action: $ral_action"
esac