def init(ctx, kube_context, submodules, repopath):
"""Init the platform by doing submodule init and checkout
all submodules on master"""
# Get the repo from arguments defaults to cwd
repo = get_repo(repopath)
submodules = get_submodules(repo, submodules)
with click_spinner.spinner():
repo.submodule_update()
logger.info('Platform initialized.')
def status(ctx, kube_context):
"""Check the status of the k3d cluster"""
# Check if the cluster exists
kube_context = ctx.kube_context
if k3d.k3d_get(kube_context):
if kube.kubectl_info(kube_context):
logger.info('K3D cluster \'' + kube_context + '\' is running')
else:
logger.error('Cluster not running. Please start the cluster')
raise click.Abort()
else:
logger.error('K3D cluster \'' + kube_context + '\' does not exist.')
def info(ctx, kube_context):
"""Get info on accessing the platform"""
kube_context = ctx.kube_context
try:
k1s_host = s.run([
'kubectl', '--context', 'k3d-' + kube_context, '-n', 'k1s', 'get',
'ingressroute', 'ui', '-o', 'jsonpath={.spec.routes[0].match}'
],
capture_output=True,
check=True)
k1s_host = k1s_host.stdout.decode('utf-8')
k1s_host = k1s_host.split('`')
k1s_url = k1s_host[1]
logger.info('K1S can be accessed through the URL:')
logger.info('https://' + k1s_url + '/')
except s.CalledProcessError as error:
logger.debug(error.stderr.decode('utf-8'))
raise click.Abort()
def token(ctx, kube_context):
"""Get the platform token required by Kubernetes Dashboard"""
kube_context = ctx.kube_context
try:
proc1 = s.Popen([
'kubectl', '--context', 'k3d-' + kube_context, '-n', 'monitoring',
'describe', 'secret', 'k1s-admin'
],
stdout=s.PIPE)
proc2 = s.Popen(['grep', 'token:'],
stdin=proc1.stdout,
stdout=s.PIPE,
universal_newlines=True)
proc1.stdout.close()
out = proc2.communicate()[0]
logger.info('The platform token is:\n')
logger.info(out)
except s.CalledProcessError as error:
logger.debug(error.stderr.decode('utf-8'))
raise click.Abort()
def stop(ctx, kube_context):
"""Stop k3d cluster"""
# Check the cluster status
kube_context = ctx.kube_context
if k3d.k3d_get(kube_context):
if not kube.kubectl_info(kube_context):
logger.info('K3D cluster \'' + kube_context +
'\' is already stopped')
raise click.Abort()
elif not k3d.k3d_get(kube_context):
logger.error('K3D cluster \'' + kube_context + '\' doesn\'t exist')
raise click.Abort()
# Stop the k3d cluster
try:
logger.debug('Running: `k3d cluster stop`')
_stop_cluster = s.run(['k3d',
'cluster',
'stop',
kube_context],
capture_output=False, check=True)
except s.CalledProcessError as error:
logger.critical('Could not stop k3d cluster' +
error.stderr.decode('utf-8'))
def ns(ctx, kube_context, name):
"""Create a namespace"""
kube_context = ctx.kube_context
# Create a namespace in kubernetes
ns_exists = s.run(
['kubectl', 'get', 'ns', name, '--context', 'k3d-' + kube_context],
capture_output=True)
if ns_exists.returncode != 0:
try:
_app_ns = s.run([
'kubectl', 'create', 'ns', name, '--context',
'k3d-' + kube_context
],
capture_output=True,
check=True)
logger.info('Created a namespace for ' + name)
except s.CalledProcessError as error:
logger.error('Something went wrong with namespace: ' +
error.stderr.decode('utf-8'))
raise click.Abort()
else:
logger.info('Skipping creation of ' + name + ' namespace '
'since it already exists.')
def init(ctx, kube_context):
"""Download binaries for all dependencies"""
# Figure out what kind of OS we are on
ostype = os.uname().sysname.lower()
# Kubectl parameters
kubectl_stable = s.check_output([
'curl', '-s',
'https://storage.googleapis.com/kubernetes-release/release/stable.txt'
]).decode('utf-8')
kubectl_url = 'https://storage.googleapis.com/kubernetes-release/release/{}/bin/linux/arm/kubectl'.format(
kubectl_stable.split('\n')[0])
# Helm parameters
helm_url = 'https://get.helm.sh/helm-v3.4.2-{}-arm.tar.gz'.format(ostype)
# K3D parameters
k3d_url = 'https://github.com/rancher/k3d/releases/download/v3.4.0/k3d-{}-arm'.format(
ostype)
# Skaffold parameters
skaffold_url = 'https://github.com/nushkovg/skaffold/releases/download/v1.17.2-arm/skaffold-{}-arm'.format(
ostype)
with click_spinner.spinner():
# Download kubectl
logger.info('Downloading kubectl...')
urllib.request.urlretrieve(kubectl_url, 'bin/kubectl')
st = os.stat('bin/kubectl')
os.chmod('bin/kubectl', st.st_mode | stat.S_IEXEC)
logger.info('kubectl downloaded')
# Download helm
logger.info('Downloading helm...')
urllib.request.urlretrieve(helm_url, 'bin/helm.tar.gz')
tar = tarfile.open('bin/helm.tar.gz', 'r:gz')
helm_file = '{}-arm/helm'.format(ostype)
for member in tar.getmembers():
if member.name == helm_file:
tar.extract(helm_file, 'bin')
os.rename('bin/' + helm_file, 'bin/helm')
tar.close()
os.remove('bin/helm.tar.gz')
os.removedirs('bin/{}-arm'.format(ostype))
logger.info('helm downloaded!')
# Download k3d
logger.info('Downloading k3d...')
urllib.request.urlretrieve(k3d_url, 'bin/k3d')
st = os.stat('bin/k3d')
os.chmod('bin/k3d', st.st_mode | stat.S_IEXEC)
logger.info('k3d downloaded')
# Download skaffold
logger.info('Downloading skaffold...')
urllib.request.urlretrieve(skaffold_url, 'bin/skaffold')
st = os.stat('bin/skaffold')
os.chmod('bin/skaffold', st.st_mode | stat.S_IEXEC)
logger.info('skaffold downloaded')
logger.info('All dependencies downloaded to bin/')
logger.info('IMPORTANT: Please add the path to your user profile to ' +
os.getcwd() + '/bin directory at the beginning of your PATH')
logger.info('$ echo export PATH=' + os.getcwd() +
'/bin:$PATH >> ~/.profile')
logger.info('$ source ~/.profile')
def cli(ctx, kube_context):
"""Preflight checks to ensure all tools and versions are present"""
# Check go
try:
go_ver = s.run(['go', 'version'], capture_output=True, check=True)
logger.info('Found go.')
logger.debug(go_ver.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('go not found in PATH.')
except s.CalledProcessError as error:
logger.critical('go version returned something unexpected: ' +
error.stderr.decode('utf-8'))
# Check docker
try:
docker_ps = s.run(['docker', 'ps'], capture_output=True, check=True)
logger.info('Found docker.')
logger.debug(docker_ps.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('docker not found in PATH.')
except s.CalledProcessError as error:
logger.critical('`docker ps` returned something unexpected: ' +
error.stderr.decode('utf-8'))
logger.critical('Please ensure the docker daemon is running and that '
'your user is part of the docker group. See README')
# Check helm 3
try:
helm_ver = s.run(['helm', 'version', '--short'],
capture_output=True,
check=True)
# Check that we have helm 3
if helm_ver.stdout.decode('utf-8')[1] != "3":
logger.error(
'Old version of helm detected when running "helm" from PATH.')
else:
logger.info('Found helm.')
logger.debug(helm_ver.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('helm not found in PATH.')
except s.CalledProcessError as error:
logger.critical('helm version returned something unexpected: ' +
error.stderr.decode('utf-8'))
# Check k3d
try:
k3d_ver = s.run(['k3d', 'version'], capture_output=True, check=True)
logger.info('Found k3d.')
logger.debug(k3d_ver.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('k3d not found in PATH.')
except s.CalledProcessError as error:
logger.critical('k3d version returned something unexpected: ' +
error.stderr.decode('utf-8'))
# Check skaffold
try:
skaffold_ver = s.run(['skaffold', 'version'],
capture_output=True,
check=True)
logger.info('Found skaffold.')
logger.debug(skaffold_ver.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('skaffold not found in PATH.')
except s.CalledProcessError as error:
logger.critical('skaffold version returned something unexpected: ' +
error.stderr.decode('utf-8'))
# Check kubectl
try:
kubectl_ver = s.run(['kubectl', 'version', '--client=true'],
capture_output=True,
check=True)
logger.info('Found kubectl.')
logger.debug(kubectl_ver.stdout.decode('utf-8'))
except FileNotFoundError:
logger.critical('kubectl not found in PATH.')
except s.CalledProcessError as error:
logger.critical('kubectl version returned something unexpected: ' +
error.stderr.decode('utf-8'))
def version(ctx, kube_context, submodules, repopath):
"""Check versions of services in git submodules
You can provide a comma separated list of submodules
or you can use 'all' for all submodules"""
# Get the repo from arguments defaults to cwd
repo = get_repo(repopath)
submodules = get_submodules(repo, submodules)
# Do something with the submodules
all_sm_details = []
with click_spinner.spinner():
for submodule in submodules:
logger.debug('Switched to submodule: ' + submodule)
sm_details = {}
sm_details['repo'] = submodule
# Are we on an active branch? on a tag? if not then get sha?
try:
smrepo = git.Repo(submodule)
sm_details['present'] = True
except git.InvalidGitRepositoryError as error:
logger.warning(submodule + ': not present')
sm_details['present'] = False
all_sm_details.append(sm_details)
continue
# Get branch
try:
branch = smrepo.active_branch.name
sm_details['branch'] = branch
# Check if remotes are ahead or behind
origin = smrepo.remotes.origin
origin.fetch()
commits_behind = smrepo.iter_commits(branch + '..origin/' +
branch)
commits_ahead = smrepo.iter_commits('origin/' + branch + '..' +
branch)
sm_details['commits_ahead'] = sum(1 for c in commits_ahead)
sm_details['commits_behind'] = sum(1 for c in commits_behind)
except TypeError as error:
sm_details['branch'] = ''
logger.debug(error)
# Check if we point to any tags
points_at_tag = smrepo.git.tag('--points-at', 'HEAD')
sm_details['tag'] = points_at_tag
# Get sha of HEAD
sha = smrepo.head.commit.hexsha
sm_details['sha'] = sha
# Add submodule details to the list
all_sm_details.append(sm_details)
logger.debug('Received following details about the platform submodules:')
logger.debug(all_sm_details)
for sm_details in all_sm_details:
logger.info(sm_details['repo'] + ':')
logger.info('Branch: ' + sm_details['branch'])
logger.info('SHA: ' + sm_details['sha'])
if sm_details['tag']:
logger.info('Tag: ' + sm_details['tag'])
if sm_details['commits_ahead'] > 0:
logger.info('Ahead by: ' + str(sm_details['commits_ahead']) +
' commits')
if sm_details['commits_behind'] > 0:
logger.info('Behind by: ' + str(sm_details['commits_behind']) +
' commits')
def create(ctx, kube_context):
"""Create a k3d cluster"""
# Check if k3d cluster is already created
kube_context = ctx.kube_context
if k3d.k3d_get(kube_context):
logger.error('K3D cluster \'' + kube_context + '\' already exists')
raise click.Abort()
# Create the k3d cluster
try:
logger.debug('Running: `k3d cluster create`')
_create_cluster = s.run(['k3d',
'cluster',
'create',
'--k3s-server-arg',
'--no-deploy=traefik',
'--port',
'80:80@loadbalancer',
'--port',
'443:443@loadbalancer',
'--port',
'8080:8080@loadbalancer',
kube_context],
capture_output=False, check=True)
except s.CalledProcessError as error:
logger.critical('Could not create k3d cluster' +
error.stderr.decode('utf-8'))
# Create required namespaces
namespaces = [kube_context, 'traefik', 'monitoring']
for ns in namespaces:
ns_exists = s.run(['kubectl',
'get',
'ns',
ns,
'--context',
'k3d-' + kube_context],
capture_output=True)
if ns_exists.returncode != 0:
try:
_app_ns = s.run(['kubectl',
'create',
'ns',
ns,
'--context',
'k3d-' + kube_context],
check=True, stdout=s.DEVNULL)
except s.CalledProcessError as error:
logger.error('Something went wrong with namespace: ' +
error.stderr.decode('utf-8'))
raise click.Abort()
else:
logger.info('Skipping creation of ' + ns + ' namespace '
'since it already exists.')
# Apply traefik CRD definitions
try:
crd_path = 'infrastructure/k1s-traefik/manifests/001-crds.yaml'
logger.debug('Running: `kubectl apply -f {}`'.format(crd_path))
_apply_crds = s.run(['kubectl',
'apply',
'-f',
crd_path],
check=True, stdout=s.DEVNULL)
except s.CalledProcessError as error:
logger.critical('Could not apply traefik CRDs' +
error.stderr.decode('utf-8'))