Add: a bunch of new scripts

1 files changed, 110 insertions, 0 deletions

diff --git a/os-rchelper b/os-rchelper
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+++ b/os-rchelper
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+#!/usr/bin/env python2
+#
+# OpenStack allows a client to have multiple "projects". To access the
+# OpenStack API, the client side libraries need some environment
+# variables set (OS_AUTH_URL, OS_PROJECT_NAME, etc), to tell the
+# libraries which OpenStack user and project, etc, are used. (As an
+# aside, one of the environment variblaes is OS_PASSWORD, which is a
+# bad idea, but we can't help that.) 
+#
+# OpenStack allows you to download shell "rc" scripts that you source
+# (". foorc.sh") to set up the environment variables. However, it gets
+# a bit tedious to manage several such rc scripts. Also, each script
+# wants you to enter the API password manually, which is just nasty.
+#
+# This is os-rchelper, which improves the situation a bit:
+#
+#    * it reads the environment variables from a YAML file, indexed
+#      by a project name given on the command line (you'll need to
+#      download the rc script and copy the values to the config file)
+#
+#    * it reads the password with pass(1) so nothing needs to be typed
+#      manually (i.e., don't put OS_PASSWORD in the config file)
+#
+# Additionally, this script unsets any pre-existing OS_* environment
+# variables.
+#
+# To use this helper:
+#
+# 1. Save API password with pass:
+#
+#       pass insert openstack-foo
+#
+#    You need to have pass and gpg set up for this to work.
+#
+# 2. Create ~/.config/qvarnlabs/openstack.conf (see example below). Add
+#    the key openstack-pass-name in addition to the OS_* environment
+#    variables. Set openstack-pass-name to the key name you gave
+#    pass (openstack-foo above).
+#
+# 3. To set up a shell session:
+#
+#       eval `os-rchelper foo`
+#
+# You may want to define a shell function to make this easier (put it
+# in .bashrc or similar file):
+#
+#    osrc() { eval `./os-rchelper "$1"`; }
+#
+# Example conf file (~/.config/qvarnlabs/openstack.conf):
+#
+# dev:
+#   openstack-pass-name: qvarnlabs-nebula-cloud
+#   OS_AUTH_URL: "https://identity.fi-1.nebulacloud.fi:5000/v3"
+#   OS_PROJECT_ID: "2603e0bfcf624053945a35afa1730dc8"
+#   OS_PROJECT_NAME: "QvarnLabs development"
+#   OS_USER_DOMAIN_NAME: "Default"
+#   OS_USERNAME: "liw@qvarnlabs.com"
+#   OS_REGION_NAME: "fi-1"
+#   OS_INTERFACE: "public"
+#   OS_IDENTITY_API_VERSION: 3
+# infra:
+#   openstack-pass-name: qvarnlabs-nebula-cloud
+#   OS_AUTH_URL: "https://identity.fi-1.nebulacloud.fi:5000/v3"
+#   OS_PROJECT_ID: "5b0e1abf166442f2967edc5233f2e6a6"
+#   OS_PROJECT_NAME: "QvarnLabs Infra"
+#   OS_USER_DOMAIN_NAME: "Default"
+#   OS_USERNAME: "liw@qvarnlabs.com"
+#   OS_REGION_NAME: "fi-1"
+#   OS_INTERFACE: "public"
+#   OS_IDENTITY_API_VERSION: 3
+#
+# See:
+# - https://control.nebulacloud.fi/project/access_and_security/
+#   for downloading rc files (one per project in OpenStack) from the
+#   Nebula clou
+
+
+import os
+import pipes
+import subprocess
+import sys
+
+import yaml
+
+
+def env(name, value):
+    sys.stdout.write('export {}={};\n'.format(name, pipes.quote(value)))
+
+
+project_name = sys.argv[1]
+
+filename = os.path.expanduser('~/.config/qvarnlabs/openstack.conf')
+with open(filename) as f:
+    conf = yaml.safe_load(f)
+
+
+keyname = conf[project_name]['openstack-pass-name']
+p = subprocess.Popen(['pass', 'show', keyname], stdout=subprocess.PIPE)
+password, stderr = p.communicate('')
+password = password.rstrip()
+
+keys_to_remove = [x for x in os.environ if x.startswith('OS_')]
+for key in keys_to_remove:
+    sys.stdout.write('unset {};\n'.format(key))
+
+keys = conf[project_name].keys()
+keys.remove('openstack-pass-name')
+for key in sorted(keys):
+    env(key, conf[project_name][key])
+env('OS_PASSWORD', password)