Initial commit.

.gitignore

+*~
+*.pyc
+/builds/

.pytest_cache/v/cache/nodeids

+[]
\ No newline at end of file

LICENSE

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Makefile

+#!/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

README.md

+# 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. 
+

actions.yaml

+"debug":
+  "description": "Collect debug data"

actions/debug

+#!/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/charm-env

+#!/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

bin/layer_option

+#!/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)

config.yaml

+# 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

+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.

debug-scripts/charm-unitdata

+#!/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")

debug-scripts/filesystem

+#!/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

debug-scripts/juju-logs

+#!/bin/sh
+set -ux
+
+cp -v /var/log/juju/* $DEBUG_SCRIPT_DIR

debug-scripts/network

+#!/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

debug-scripts/packages

+#!/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

debug-scripts/sysctl

+#!/bin/sh
+set -ux
+
+sysctl -a > $DEBUG_SCRIPT_DIR/sysctl

debug-scripts/systemd

+#!/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