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#!/usr/bin/make
all: lint unit_test
.PHONY: clean
clean:
@rm -rf .tox
.PHONY: apt_prereqs
apt_prereqs:
@# Need tox, but don't install the apt version unless we have to (don't want to conflict with pip)
@which tox >/dev/null || (sudo apt-get install -y python-pip && sudo pip install tox)
.PHONY: lint
lint: apt_prereqs
@tox --notest
@PATH=.tox/py34/bin:.tox/py35/bin flake8 $(wildcard hooks)
@charm proof
.PHONY: unit_test
unit_test: apt_prereqs
@echo Starting tests...
tox
# Kubernetes-keystone
This charm deploys a service that provides [Webhook Token
Authentication](https://kubernetes.io/docs/reference/access-authn-authz/authentication/)
to `Kubernetes` through `OpenStack Keystone`.
# Deployment
This is a subordinate charm to the [kubernetes-master]() charm.
In order to deploy it, do:
$ juju deploy cs:~csd-garr/kubernetes-keystone
$ juju add-relation kubernetes-master:juju-info kubernetes-keystone:juju-info
# Resources
The kubernetes-keystone charm takes advantage of the [Juju Resources](https://docs.jujucharms.com/2.4/en/developer-resources)
feature to deliver the Kubernetes software.
In deployments on public clouds the Charm Store provides the resource to the
charm automatically with no user intervention. Some environments with strict
firewall rules may not be able to contact the Charm Store. In these network
restricted environments the resource can be uploaded to the model by the Juju
operator.
# Configuration
This charm supports some configuration options to set up a `Webhook
Token Authentication` server for `Keystone`:
#### keystone-url
URL of the Keystone endpoint.
#### k8s-keystone-auth-url
URL for downloading the Keystone authentication server.
#### authn-server-url
The URL of the `Keystone` endpoint.
#### authz-server-url
URL for the Webhook authorization server.
# More information
- [Kubernetes github project](https://github.com/kubernetes/kubernetes)
- [Kubernetes documentation](http://kubernetes.io/docs/)
# Contact
The kubernetes-keystone charm is free and open source operations created
by the CSD team at GARR.
"debug":
"description": "Collect debug data"
#!/usr/local/sbin/charm-env python3
import os
import subprocess
import tarfile
import tempfile
import traceback
from contextlib import contextmanager
from datetime import datetime
from charmhelpers.core.hookenv import action_set, local_unit
archive_dir = None
log_file = None
@contextmanager
def archive_context():
""" Open a context with a new temporary directory.
When the context closes, the directory is archived, and the archive
location is added to Juju action output. """
global archive_dir
global log_file
with tempfile.TemporaryDirectory() as temp_dir:
name = "debug-" + datetime.now().strftime("%Y%m%d%H%M%S")
archive_dir = os.path.join(temp_dir, name)
os.makedirs(archive_dir)
with open("%s/debug.log" % archive_dir, "w") as log_file:
yield
os.chdir(temp_dir)
tar_path = "/home/ubuntu/%s.tar.gz" % name
with tarfile.open(tar_path, "w:gz") as f:
f.add(name)
action_set({
"path": tar_path,
"command": "juju scp %s:%s ." % (local_unit(), tar_path),
"message": " ".join([
"Archive has been created on unit %s." % local_unit(),
"Use the juju scp command to copy it to your local machine."
])
})
def log(msg):
""" Log a message that will be included in the debug archive.
Must be run within archive_context """
timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
for line in str(msg).splitlines():
log_file.write(timestamp + " | " + line.rstrip() + "\n")
def run_script(script):
""" Run a single script. Must be run within archive_context """
log("Running script: " + script)
script_dir = os.path.join(archive_dir, script)
os.makedirs(script_dir)
env = os.environ.copy()
env["PYTHONPATH"] = "lib" # allow same imports as reactive code
env["DEBUG_SCRIPT_DIR"] = script_dir
with open(script_dir + "/stdout", "w") as stdout:
with open(script_dir + "/stderr", "w") as stderr:
process = subprocess.Popen(
"debug-scripts/" + script,
stdout=stdout, stderr=stderr, env=env
)
exit_code = process.wait()
if exit_code != 0:
log("ERROR: %s failed with exit code %d" % (script, exit_code))
def run_all_scripts():
""" Run all scripts. For the sake of robustness, log and ignore any
exceptions that occur.
Must be run within archive_context """
scripts = os.listdir("debug-scripts")
for script in scripts:
try:
run_script(script)
except:
log(traceback.format_exc())
def main():
""" Open an archive context and run all scripts. """
with archive_context():
run_all_scripts()
if __name__ == "__main__":
main()
#!/bin/bash
find_charm_dirs() {
# Hopefully, $JUJU_CHARM_DIR is set so which venv to use in unambiguous.
if [[ -n "$JUJU_CHARM_DIR" || -n "$CHARM_DIR" ]]; then
if [[ -z "$JUJU_CHARM_DIR" ]]; then
# accept $CHARM_DIR to be more forgiving
export JUJU_CHARM_DIR="$CHARM_DIR"
fi
if [[ -z "$CHARM_DIR" ]]; then
# set CHARM_DIR as well to help with backwards compatibility
export CHARM_DIR="$JUJU_CHARM_DIR"
fi
return
fi
# Try to guess the value for JUJU_CHARM_DIR by looking for a non-subordinate
# (because there's got to be at least one principle) charm directory;
# if there are several, pick the first by alpha order.
agents_dir="/var/lib/juju/agents"
if [[ -d "$agents_dir" ]]; then
non_subordinates="$(grep -L 'subordinate:.*true' "$agents_dir"/*/charm/metadata.yaml | wc -l)"
if [[ "$non_subordinates" -gt 1 ]]; then
>&2 echo 'Ambiguous possibilities for JUJU_CHARM_DIR; please run within a Juju hook context'
exit 1
elif [[ "$non_subordinates" -eq 1 ]]; then
for unit_dir in $(/bin/ls -d "$agents_dir/unit-"*); do
if grep -q 'subordinate:.*true' "$unit_dir/charm/metadata.yaml"; then
continue
fi
export JUJU_CHARM_DIR="$unit_dir/charm"
export CHARM_DIR="$JUJU_CHARM_DIR"
return
done
fi
fi
>&2 echo 'Unable to determine JUJU_CHARM_DIR; please run within a Juju hook context'
exit 1
}
try_activate_venv() {
if [[ -d "$JUJU_CHARM_DIR/../.venv" ]]; then
. "$JUJU_CHARM_DIR/../.venv/bin/activate"
fi
}
find_wrapped() {
PATH="${PATH/\/usr\/local\/sbin:}" which "$(basename "$0")"
}
find_charm_dirs
try_activate_venv
export PYTHONPATH="$JUJU_CHARM_DIR/lib:$PYTHONPATH"
if [[ "$(basename "$0")" == "charm-env" ]]; then
# being used as a shebang
exec "$@"
elif [[ "$0" == "$BASH_SOURCE" ]]; then
# being invoked as a symlink wrapping something to find in the venv
exec "$(find_wrapped)" "$@"
elif [[ "$(basename "$BASH_SOURCE")" == "charm-env" ]]; then
# being sourced directly; do nothing
/bin/true
else
# being sourced for wrapped bash helpers
. "$(find_wrapped)"
fi
#!/usr/bin/env python3
import sys
import argparse
from charms import layer
parser = argparse.ArgumentParser(description='Access layer options.')
parser.add_argument('section',
help='the section, or layer, the option is from')
parser.add_argument('option',
help='the option to access')
args = parser.parse_args()
value = layer.options.get(args.section, args.option)
if isinstance(value, bool):
sys.exit(0 if value else 1)
elif isinstance(value, list):
for val in value:
print(val)
else:
print(value)
# Copyright 2018 GARR CSD.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"options":
"authn-server-url":
"type": "string"
"default": "https://localhost:8443/webhook"
"description": |
URL for the Webhook authentication server.
"authz-server-url":
"type": "string"
"default": "https://localhost:8443/webhook"
"description": |
URL for the Webhook authorization server.
"k8s-keystone-auth-url":
"type": "string"
"default": "https://git.garr.it/cloud/charms/kubernetes-keystone/raw/master/bin/linux-amd64/k8s-keystone-auth"
"description": |
URL for downloading the Keystone authentication server.
"keystone-url":
"type": "string"
"default": ""
"description": "URL of the Keystone endpoint. \n"
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
#!/usr/local/sbin/charm-env python3
import debug_script
import json
from charmhelpers.core import unitdata
kv = unitdata.kv()
data = kv.getrange("")
with debug_script.open_file("unitdata.json", "w") as f:
json.dump(data, f, indent=2)
f.write("\n")
#!/bin/sh
set -ux
# report file system disk space usage
df -hT > $DEBUG_SCRIPT_DIR/df-hT
# estimate file space usage
du -h / 2>&1 > $DEBUG_SCRIPT_DIR/du-h
# list the mounted filesystems
mount > $DEBUG_SCRIPT_DIR/mount
# list the mounted systems with ascii trees
findmnt -A > $DEBUG_SCRIPT_DIR/findmnt
# list block devices
lsblk > $DEBUG_SCRIPT_DIR/lsblk
# list open files
lsof 2>&1 > $DEBUG_SCRIPT_DIR/lsof
# list local system locks
lslocks > $DEBUG_SCRIPT_DIR/lslocks
#!/bin/sh
set -ux
cp -v /var/log/juju/* $DEBUG_SCRIPT_DIR
#!/bin/sh
set -ux
ifconfig -a > $DEBUG_SCRIPT_DIR/ifconfig
cp -v /etc/resolv.conf $DEBUG_SCRIPT_DIR/resolv.conf
cp -v /etc/network/interfaces $DEBUG_SCRIPT_DIR/interfaces
netstat -planut > $DEBUG_SCRIPT_DIR/netstat
route -n > $DEBUG_SCRIPT_DIR/route
iptables-save > $DEBUG_SCRIPT_DIR/iptables-save
dig google.com > $DEBUG_SCRIPT_DIR/dig-google
ping -w 2 -i 0.1 google.com > $DEBUG_SCRIPT_DIR/ping-google
#!/bin/sh
set -ux
dpkg --list > $DEBUG_SCRIPT_DIR/dpkg-list
snap list > $DEBUG_SCRIPT_DIR/snap-list
pip2 list > $DEBUG_SCRIPT_DIR/pip2-list
pip3 list > $DEBUG_SCRIPT_DIR/pip3-list
#!/bin/sh
set -ux
sysctl -a > $DEBUG_SCRIPT_DIR/sysctl
#!/bin/sh
set -ux
systemctl --all > $DEBUG_SCRIPT_DIR/systemctl
journalctl > $DEBUG_SCRIPT_DIR/journalctl
systemd-analyze time > $DEBUG_SCRIPT_DIR/systemd-analyze-time
systemd-analyze blame > $DEBUG_SCRIPT_DIR/systemd-analyze-blame
systemd-analyze critical-chain > $DEBUG_SCRIPT_DIR/systemd-analyze-critical-chain
systemd-analyze dump > $DEBUG_SCRIPT_DIR/systemd-analyze-dump
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