OpenStack Rest API call with cURL

openstack_curl_example.sh

#!/bin/bash

# This script is an example for calling OpenStack Rest API with cURL.
# First, gets project-scoped token, then gets instance information with the token.
# Prereq: jq

# Note that before running this script, ensure to set some environment variables.
# e.g.
#   source ~/keystonerc_admin
# or
#   source ~/overcloudrc

JSON_UNSCOPED_TOKEN=$(cat <<END
{
  "auth": {
    "identity": {
      "methods": ["password"],
      "password": {
        "user": {
          "name": "${OS_USERNAME}",
          "domain": {"id": "default"},
          "password": "${OS_PASSWORD}"
        }
      }
    }
  }
}
END
)

JSON_PROJECT_SCOPED_TOKEN=$(cat <<END
{
  "auth": {
    "identity": {
      "methods": ["password"],
      "password": {
        "user": {
          "name": "${OS_USERNAME}",
          "domain": {"name": "${OS_USER_DOMAIN_NAME}"},
          "password": "${OS_PASSWORD}"
        }
      }
    },
    "scope": {
      "project": {
        "name": "${OS_PROJECT_NAME}",
        "domain": {"name": "${OS_PROJECT_DOMAIN_NAME}"}
      }
    }
  }
}
END
)

token_curl_output=$(curl -s -i -H "Content-Type: application/json" -d "${JSON_PROJECT_SCOPED_TOKEN}" ${OS_AUTH_URL}/auth/tokens)
#echo "${token_curl_output}"

token=$(echo "${token_curl_output}" | awk '/^X-Subject-Token:/ {print $2}')
#echo "token: ${token}"

$/d')$(echo "${token_curl_output}" | sed -e '1,/^
#echo "json:"
endpoint=$(echo "${json}" | jq -r '.token.catalog[] | select(.type == "compute") | .endpoints[] | select(.interface == "public") | .url')
#echo "public endpoint: ${endpoint}"

curl -s -H "Content-Type: application/json" -H "X-Auth-Token: ${token}" ${endpoint}/servers/detail