def startup():
with settings(
show('running',
'stdout',
'stderr'),
warn_only=True, always_use_pty='false'):
start_graph = fab_local('/opt/graphite/bin/carbon-cache.py start',capture=True)
if start_graph.succeeded:
fab_puts("Successfully Started Graphite. Check your browser!",show_prefix=False)
else:
fab_puts("Failed to Start Graphite. \
Please check Graphite and Apache2 logs.",show_prefix=False)
def create_snapshot():
message = '\"Snapshot before graphite and its dependencies\"'
with settings(
show('running',
'stdout',
'stderr'),
warn_only=True, always_use_pty='false'):
x = localtime()
## Month needs to always be 2 digits XX, bug.
ts = "{0}{1}{2}".format(x.tm_year,x.tm_mon,x.tm_mday)
bpcreate = fab_local("blueprint create --sh --message {0} bluep-{1}-001".format(message,ts),capture=True)
if bpcreate.succeeded:
fab_puts("Blueprint created checkpoint.", show_prefix=False)
def patch_os(ag='apt-get'):
apt_upd = None
with settings(
show('running',
'stdout',
'stderr'),
warn_only=True, always_use_pty='false'):
## Check if package cache is older than one day, if not
## there is no reason to update it again.
if time() - os_stat('/var/cache/apt/pkgcache.bin').st_mtime < 86400:
fab_puts("Caches are still fresh, will not update.",show_prefix=False)
else:
apt_upd = fab_local('apt-get update',capture=True)
if apt_upd.failed:
fab_puts("{0}".format('Aptitude failed to completely update cache.'), show_prefix=False)
if apt_upd.succeeded:
## If we successfully updated, let's actually upgrade packages
apt_upgr = fab_local("{0} {1}".format(ag,'dist-upgrade --assume-yes'),
capture=False)
def install_deps(ag='apt-get'):
reqs = ['apache2', 'libapache2-mod-wsgi',
'libapache2-mod-python', 'memcached', 'python-dev', 'python-cairo-dev',
'python-django', 'python-ldap', 'python-memcache', 'python-pysqlite2',
'sqlite3', 'erlang-os-mon', 'erlang-snmp', 'rabbitmq-server']
with settings(
show('running',
'stdout',
'stderr'),
warn_only=True, always_use_pty='false'):
a = fab_local("{0} install --no-install-recommends --assume-yes {1}".format(ag," ".join(reqs)))
b = fab_local('pip install django-tagging')
if a.succeeded and b.succeeded:
fab_puts("Installed Prerequisites for Graphite.", show_prefix=False)
else:
if a.failed:
print a.stderr
if b.failed:
print b.stderr
fab_abort("Failed to Install Pre-requisites, cannot continue.", show_prefix=False)
def configure():
graph_conf_path='/opt/graphite/conf'
graph_stor_path = '/opt/graphite/storage'
apache_avail = '/etc/apache2/sites-available'
apache_enab = '/etc/apache2/sites-enabled'
apache_src_conf = '/root/default-graphite'
apache_dst_conf = "{0}/{1}".format(apache_avail,'default-graphite')
apache_enab_conf = "{0}/{1}".format(apache_enab,'default-graphite')
stor_sch_conf = "{0}/{1}".format(graph_conf_path,'storage-schemas.conf')
with settings(
show('running',
'stdout',
'stderr'),
warn_only=True, always_use_pty='false'):
for file in ['carbon.conf','storage-schemas.conf','graphite.wsgi']:
src = "{0}/{1}.example".format(graph_conf_path,file)
dst = "{0}/{1}".format(graph_conf_path,file)
## Copy from example, template to real file
copyfile(src,dst)
## Generate default-graphite apache config file, based on
## template at top of this file.
make_apache_conf = Template(apache_base_templ)
## Write template into the new config file
## /etc/apache2/sites-available/default-graphite
try:
open(apache_dst_conf,'wt').write(
make_apache_conf.substitute(port=80,wsgi_sockd='/etc/httpd/wsgi/')
)
fab_puts("Wrote apache config for Graphite WebApp.",show_prefix=False)
except IOError as e:
fab_abort("Error {0} Failed to open file {1}".format(e.errno,e.filename))
try:
open(stor_sch_conf,'at').write(stor_base_templ)
fab_puts("Updated storage schema config with brickstor elements.",show_prefix=False)
except IOError as e:
fab_abort("Error {0} Failed to open file {1}".format(e.errno,e.filename))
try:
os_remove('/etc/apache2/sites-enabled/000-default')
except OSError as e:
print "Warning: {0} {1}".format(e.filename,e.args)
## Create necessary directories for Apache
for dir in ['/etc/httpd','/etc/httpd/wsgi']:
try:
os_mkdir(dir,0755)
fab_puts("Created directory: {0}".format(dir),show_prefix=False)
except OSError as e:
print "Warning: {0} {1}".format(e.filename,e.args)
try:
os_symlink(apache_dst_conf, apache_enab_conf)
fab_puts("Created symbolic link for {0}".format(apache_dst_conf),show_prefix=False)
except OSError as e:
print "Warning: {0} {1}".format(e.filename,e.args)
with fab_lcd('/opt/graphite/webapp/graphite/'):
fab_local('python manage.py syncdb')
## This should really use python os module, will fix later.
fab_local("chown -R {0} {1}".format('www-data:www-data',graph_stor_path))
## Copy local_settings.py.example config into real config file
src = '/opt/graphite/webapp/graphite/local_settings.py.example'
dst = '/opt/graphite/webapp/graphite/local_settings.py'
copyfile(src,dst)
## Reload Apache config after all the changes
fab_local("/etc/init.d/apache2 reload")