OpenStack Murano introduction

OpenStack Murano
- an application catalog service

Agenda
 Why Murano?
 What is Murano?
 Murano architecture
 How to use Murano?
 Install and configure Murano
 push-a-button style deployment for end user
 Application Catalog Design in Murano
 Murano best practices
 Troubleshooting
 Understand how Murano-agent works
2

Why Murano?
4
This is how we buy product
in Amazon.com.
This is how we will consume
cloud service on OpenStack by
Murano.

What is Murano?
 What is Murano
 Just like hardware will be useless without software, virtual machine is useless
without application.
 Murano is an application catalog service runs on the top of OpenStack IaaS
layer.
 Goal
 compose and deploy composite environments on the Application abstraction
level via UI or rest API
 application life cycle management
 be an integration point for various applications and service in OpenStack
 Source code
 https://git.openstack.org/cgit/?q=Murano
 https://launchpad.net/Murano 5

Murano architecture
7
❶ user send request via Murano dashboard to Murano
python client
❷ Murano python client send request to Murano API
server
❸ Murano api server send the request to rabbitmq
❹ Murano conductor pick the request message from
queue
❺ Murano conductor parse the message and construct
a heat template to heat engine
❻Murano conductor send the really deployment
execution plan to the rabbitmq as Murano agent task
❼ heat deploy the whole IaaS level infrastructure via
various OpenStack services
❽ OpenStack services provision the vm instances with
Murano-agent enabled.
❾ on vms Murano-agent pick up the execution plan
assigned by the Murano conductor and execute them via
various scripts on certain OS

Murano components
Murano API Service
• Murano API provides access to the Murano orchestration engine via API.
Conductor Service(Orchestration Engine)
• Conductor is a Murano orchestration engine that transforms object model sent by REST API service into a series
of Heat and Murano-Agent commands.
Murano Repository Service
• Murano Repository provides access to metadata for Murano Conductor and Murano Dashboard. It also allows to
manage metadata objects via API. Editing service definitions (and other data stored in Murano Repository) is
made separately for each tenant.
Murano Dashboard
• Murano Dashboard provides Web UI for Murano Project.
8

How to use Murano?
 Murano personas
 Install and configure Murano
 push-a-button style deploy for end user
 Application Catalog Design in Murano
9

Murano personas
10
f
cloud catalog
admincloud end user
3rd party cloud
application provider
Murano
consumes
Maintain and set policy
integrate and publish
integrates

Install and configure Murano
 Using Devstack
 $ git clone https://github.com/openstack-dev/devstack.git
 $git checkout stable/juno
 $ wget https://raw.github.com/stackforge/Murano-deployment/release-0.4/
 getting-started/localrc
 $ wget https://raw.github.com/stackforge/Murano-deployment/release-0.4/
 getting-started/local.sh
 $ chmod +x local.sh
 $ ./stack.sh
11

Install Murano-Using devstack-Local.sh
12

Murano.conf
13
Rabbit host
Keystone auth

Push-a-button style deployment
14
❶create
environment
❷add
component from
the catalog
services
❸deploy the
environment
❹consume the
cloud service
❺charge by
billing system
❻delete the
environment
start point

Application Catalog Design in Murano
 most complex and important part in Murano
 generic workflow is
 build Murano-agent enabled vm image
 create application package
 specify the billing rules and usage metrics
 test and verify
 publish to Murano catalog
15

Design an application catalog high level
overview
16
apache
OS
Modeling
in Murano
Apache
Service
in OpenStack
Apache service
Linux Windows

build Murano-agent enabled vm image
 build Murano windows image
 Install Required Packages
 Configure Shared Resource
 Prerequisites
 Additional Software
 Build Windows Image
(Automatic Way)
 Build Windows Image (Manual
Way)
 Upload Image Into Glance
17
• build Murano Linux image
• Install Required Packages
• Build Linux Image
• Guest VM Linux OS
preparation
• Upload Image Into Glance

Building Windows Image
 Configure Shared Resource
 Prerequisites
 Additional Software
 Build Windows Image (Automatic Way)
 Build Windows Image (Manual Way)
18

Building Windows Image -Install Required
Packages
 ipxe-qemu
 kvm-ipxe
 qemu-kvm
 python-libvirt
 libvirt-bin
 libvirt0
 virt-goodies
 virt-manager
 virt-top
 virt-what
 virtinst
 python
19
# apt-get install ipxe-qemu kvm-ipxe qemu-kvm virt-goodies
virtinst virt-manager libvirt0 libvirt-bin
python python-libvirt
python-libxml2 python-minimal python-pycurl
python-pyorbit python-requests python-six
samba samba-common openssh-server virt-top virt-what

Building Windows Image -Configure Shared
Resource
 Configure samba based share
># mkdir -p /opt/samba/share
># chown -R nobody:nogroup /opt/samba/share
 Configure samba server (/etc/samba/smb.conf).
...
[global]
...
security = user
...
[share]
comment = Deployment Share
path = /opt/samba/share
browsable = yes
read only = no
create mask = 0755
guest ok = yes
guest account = nobody
...
 Restart services.
># service smbd restart
># service nmbd restart
20

Building Windows Image -Prerequisites•${SHARE_PATH}/libvirt/images/ws-2012-eval.iso
•http://technet.microsoft.com/en-us/evalcenter/hh670538.aspx
Windows 2012 Server ISO evaluation version
•${SHARE_PATH}/libvirt/images/virtio-win-0.1-52.iso
•http://alt.fedoraproject.org/pub/alt/virtio-win/stable/virtio-win-0.1-52.iso
VirtIO drivers for Windows
•${SHARE_PATH}/share/files/CloudbaseInitSetup_Beta.msi
•http://www.cloudbase.it/downloads/CloudbaseInitSetup_Beta.msiCloudBase-Init for Windows
•${SHARE_PATH}/share/files/Far30b3367.x64.20130426.msi
•http://www.farmanager.com/files/Far30b3525.x64.20130717.msi
Far Manager
•${SHARE_PATH}/share/files/Git-1.8.1.2-preview20130201.exe
•https://msysgit.googlecode.com/files/Git-1.8.3-preview20130601.exe
Git client
•${SHARE_PATH}/share/files/SysinternalsSuite.zip
•http://download.sysinternals.com/files/SysinternalsSuite.zipSysinternals Suite
•${SHARE_PATH}/share/files/unzip.exe
•https://www.dropbox.com/sh/zthldcxnp6r4flm/-k1Om_V6XR
unzip.exe tool
•${SHARE_PATH}/share/files/Windows6.1-KB2506143-x64.msu
•http://www.microsoft.com/en-us/download/details.aspx?id=34595PowerShell v3
•${SHARE_PATH}/share/files/dotNetFx40_Full_x86_x64.exe
•http://www.microsoft.com/en-us/download/details.aspx?id=17718.NET 4.0
•${SHARE_PATH}/share/files/dotNetFx45_Full_setup.exe
•http://www.microsoft.com/en-us/download/details.aspx?id=30653
.NET 4.5
•${SHARE_PATH}/share/files/MuranoAgent.zip
•https://www.dropbox.com/sh/zthldcxnp6r4flm/-k1Om_V6XRMurano Agent 21

Building Windows Image -Additional Software
 Windows ADK
 ${SHARE_PATH}/libvirt/images/ws-2012-eval.iso
 Windows Assessment and Deployment Kit (ADK) for Windows® 8 is required to build your own answer files for auto unattended Windows installation.
 http://technet.microsoft.com/en-us/evalcenter/hh670538.aspx
 PuTTY
 PuTTY is a useful tool to manage your Linux boxes via SSH.
 Windows Server 2012 ISO image
 Image Name: 9200.16384.WIN8_RTM.120725-1247_X64FRE_SERVER_EVAL_EN-US-HRM_SSS_X64FREE_EN-US_DV5.iso
 URL: http://technet.microsoft.com/en-US/evalcenter/hh670538.aspx?ocid=&wt.mc_id=TEC_108_1_33
 VirtIO Red Hat drivers ISO image
 Download drivers from http://alt.fedoraproject.org/pub/alt/virtio-win/stable/
 Floppy Image With Unattended File
 Create empty floppy image in your home folder
 ># dd bs=512 count=2880
 if=/dev/zero of=~/floppy.img
 mkfs.msdos ~/floppy.img
 Mount the image to /media/floppy
 ># mkdir /media/floppy mount -o loop
 ~/floppy.img /media/floppy
 Download autounattend.xml file from https://raw.github.com/stackforge/Murano-deployment/master/image-builder/share/files/ws-2012-std/autounattend.xml
 ># cd ~
 ># wget https://raw.github.com/stackforge/Murano-deployment
 /master/image-builder/share/files/ws-2012-std/autounattend.xmlMurano Agent
 Copy our autounattend.xml to /media/floppy
 ># cp ~/autounattend.xml /media/floppy
 Unmount the image
 ># umount /media/floppy
22

Building Windows Image- Build Windows
Image (Automatic Way) Clone Murano-deployment repository
 ># git clone git://github.com/stackforge/Murano-deployment.git
 Change directory to Murano-deployment/image-builder folder.
 Create folder structure for image builder
 ># make build-root
 Create shared resource
 Add to /etc/samba/smb.conf.
 [image-builder-share]
 comment = Image Builder Share
 browsable = yes
 path = /opt/image-builder/share
 guest ok = yes
 guest user = nobody
 read only = no
 create mask = 0755
 Restart samba services.
 ># restart smbd && restart nmbd
 Test that all required files are in place
 ># make test-build-files
 Get list of available images
 ># make
 Run image build process
 ># make ws-2012-std
 Wait until process finishes
 he image file ws-2012-std.qcow2 should be stored under /opt/image-builder/share/images folder. 23

Image (Manual Way)
 Get Post-Install Scripts
 Download package installation script named wpi.ps1 from https://raw.github.com/stackforge/Murano-
deployment/master/image-builder/share/scripts/ws-2012-std/wpi.ps1
 Download Clean-up script Start-Sysprep.ps1 from https://raw.github.com/stackforge/Murano-
deployment/master/image-builder/share/scripts/ws-2012-std/Start-Sysprep.ps1
 Create a VM
 Using CLI Tools
 Preallocate disk image
># qemu-img create -f raw /var/lib/libvirt/images/ws-2012.img 40G
 Start the VM
># virt-install --connect qemu:///system --hvm --name WinServ
--ram 2048 --vcpus 2 --cdrom /opt/samba/share/9200.16384.WIN8_RTM
.120725-1247_X64FRE_SERVER_EVAL_EN-US-HRM_SSS_X64FREE_EN-US_DV5.ISO
--disk path=/opt/samba/share/virtio-win-0.1-52.iso,device=cdrom
--disk path=/opt/samba/share/floppy.img,device=floppy
--disk path=/var/lib/libvirt/images/ws-2012.qcow2
,format=qcow2,bus=virtio,cache=none
--network network=default,model=virtio
--memballoon model=virtio --vnc --os-type=windows
--os-variant=win2k8 --noautoconsole
--accelerate --noapic --keymap=en-us --video=cirrus –force
24

Image (Manual Way)-cont
 Using virt-manager UI
 Launch virt-manager from shell as root
 Set a name for VM and select Local install media
 Add one cdrom and attach Windows Server ISO image to it
 Select OS type Windows and it's version Windows Server 2008
 Set CPU and RAM amount
 Deselect option Enable storage for this virtual machine
 Select option Customize configuration before install
 Add second cdrom for ISO image with virtio drivers
 Add a floppy drive and attach our floppy image to it
 Add (or create new) HDD image with Disk bus VirtIO and storage format RAW
 Set network device model VirtIO
 Start installation process and open guest vm screen through Console button
 Convert the image from RAW to QCOW2 format.
 # qemu-img convert -O qcow2 /var/lib/libvirt/images/ws-2012.raw
 /var/lib/libvirt/images/ws-2012-ref.qcow2
25

Building Windows Image -Upload Image Into
Glance
 import your disk image to Glance
>$ glance image-create --name <NAME>
--is-public true --disk-format qcow2
--container-format bare
--file <IMAGE_FILE>
--property <IMAGE_METADATA>
 to update the exiting image meta data
 >$ glance image-update <IMAGE-ID> --property <IMAGE_MATADATA>
26

Building Linux Image
 Build Linux Image
 Guest VM Linux OS preparation
27

Building Linux Image-Install Required
Packages
 ipxe-qemu
 kvm-ipxe
 qemu-kvm
 python-libvirt
 libvirt-bin
 libvirt0
 virt-goodies
 virt-manager
 virt-top
 virt-what
 virtinst
 python
28
># apt-get install ipxe-qemu kvm-ipxe qemu-kvm virt-goodies
virtinst virt-manager libvirt0 libvirt-bin
python python-libvirt
python-libxml2 python-minimal python-pycurl
python-pyorbit python-requests python-six
samba samba-common openssh-server virt-top virt-what

Building Linux Image-Build Linux Image
 Create a VM via CLI
 Preallocate disk image
 ># qemu-img create -f qcow2 /var/lib/libvirt/images/cloud-linux.img 10G
 Start the VM
># virt-install --connect qemu:///system --hvm --name cloud-linux
--ram 2048 --vcpus 2 --cdrom /PATH_TO_YOUR_LINUX.ISO
--disk path=/var/lib/libvirt/images/cloud-linux.img,
format=qcow2,bus=virtio,cache=none
--network network=default,model=virtio
--memballoon model=virtio --vnc --os-type=linux
--accelerate --noapic --keymap=en-us --video=cirrus --force
29

Building Linux Image-Build Linux Image
 Create a VM via virt-manager UI
 Launch virt-manager from shell as root
 Set a name for VM and select Local installation media
 Add one cdrom and attach your linux ISO image to it
 Select OS type Linux and it's version choose yours
 Set CPU and RAM amount
 Deselect option Enable storage for this virtual machine
 Select option Customize configuration before install
 Add (or create new) HDD image with Disk bus VirtIO and storage
format QCOW2
 Set network device model VirtIO
 Start installation process and open guest vm screen
through Console button
30

Building Linux Image-Guest VM Linux OS
preparation OS system required tools preparation
># apt-get -y update; apt-get -y dist-upgrade
># apt-get install -y git unzip make cmake gcc
python-dev python-pip openssh-server
 Murano-agent installation steps
># mkdir -p /opt/git
># cd /opt/git
># git clone https://github.com/stackforge/Murano-agent.git
># cd Murano-agent/python-agent
># git checkout release-0.3
># chmod a+x setup*.sh
# To install Murano Agent on Ubuntu run:
># ./setup.sh install
# To install Murano Agent on CentOS run:
># ./setup-centos.sh install
 cloud-init installation
 install cloud-init
># apt-get install -y cloud-init cloud-initramfs-growroot
# dpkg-reconfigure cloud-init
 cloud-init configuration options
># vi /etc/cloud/cloud.cfg
user: ec2-user
disable_root: 1
preserve_hostname: False
31

Building Linux Image-Guest VM Linux OS
preparation
 Security setup
># useradd -m -G sudo -s /bin/bash ec2-user
># passwd ec2-user
># echo "ec2-user ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/ec2-user
># chmod 440 /etc/sudoers.d/ec2-user
 Disable SSH password-based logins in the /etc/ssh/sshd_config.
...
GSSAPIAuthentication no
PasswordAuthentication no
PermitRootLogin no
...
 Network handling
 # rm -f /etc/udev/rules.d/70-persistent-net.rules
 Shutdown VM
 Convert the image from RAW to QCOW2
># qemu-img convert -O qcow2 /var/lib/libvirt/images/cloud-linux.img
/var/lib/libvirt/images/cloud-linux.img.qcow2
32

Building Linux Image-Upload Image Into
Glance
 import image to glance
># glance image-create --disk-format=qcow2 --container-format=bare
--is-public=true --file=cloud-linux.img --name=cloud-linux
33

create application package
 Step 1. Prepare Execution Plans
 Step 2. Prepare MuranoPL class definitions
 Step 3. Prepare Dynamic UI Form Definition
 Step 4. Prepare application logo
 Step 5. Prepare manifest file
 Step 6. Compose a zip archive
34

 FormatVersion - version of Execution Plan syntax format
 Version - version of Execution Plan
 Name - human-readable name of the Execution Plan
 Parameters - parameters received from MuranoPL
 Body - Python statement, should start with | symbol
 Scripts - dictionary that maps script names to script definitions.
 Type: Deployment Platform name that script is targeted to.
 Version: optional minimum version of deployment platform/executor required by the
script.
 EntryPoint: relative path to the file that contains a script entry point
 Files: This is an optional array of additional files required for the script. Use <> to specify
a relative path to the file. The root directory is Resource/scripts.
 Options: an optional argument of type contains additional options
35

Example - DeployTelnet.template
FormatVersion: 2.0.0
Version: 1.0.0
Name: Deploy Telnet
Parameters:
appName: $appName
Body: |
return deploy(args.appName).stdout
Scripts:
deploy:
Type: Application
Version: 1.0.0
EntryPoint: deployTelnet.sh
Files:
- installer.sh
- common.sh
Options:
captureStdout: true
captureStderr: false 36
Like main func
Like sub func
Like 2>&1

 MuranoPL classes control application deployment workflow execution.
Namespaces:
=: io.Murano.apps.linux
std: io.Murano
res: io.Murano.resources
Name: Telnet
Extends: std:Application
Properties:
name:
Contract: $.string().notNull()
instance:
Contract: $.class(res:Instance).notNull()
Workflow:
deploy:
Body:
- $.instance.deploy()
- $resources: new('io.Murano.system.Resources')
- $template: $resources.json('DeployTelnet.template')
- $.instance.agent.call($template, $resources) 37

MuranoPL
 Developed for managing complex compound applications with
minimal code duplication.
 Has YAML-based syntax.
 Built on classes, composition and inheritance.
 Safe enough to be used for execution of untrusted code
38

Murano PL – YAQL(Yet Another Query
Language) https://github.com/ativelkov/yaql
 query language designed as part of Murano project.
 a language for expression evaluation
 presence of ‘$’ sign
 no built in list of functions
 Everything YAQL can access is customizable
 3* foo(3,6) depends on the implementation of ‘foo’ and operator ‘*’
 $foo means get the value of $foo?
 a lot of OOTB functions
 no assignment operator in YAQL
 ‘=‘ means ‘==‘ in Python
39

Murano PL – common class structure
Name: class name
Namespaces: namespaces specification
Extends: [list of parent classes]
Properties: properties declaration
Workflow:
methodName:
Arguments:
- list
- of
- arguments
Body:
- list
- of
- instructions
40
Murano.overview
class MyClass
(MyBase1, MyBase2,…):
name = ‘hello’
value = ‘world’
def say(self,*args,**kargs):
pass
def say_again(self, *args, **kargs):
pass

Murano PL – common class structure-
Namespaces
Namespaces:
=: com.mirantis.Murano.services.windows
srv: com.mirantis.Murano.services
std: com.mirantis.Murano
srv:foo equals to com.mirantis.Murano.services.foo
‘=‘ means current namespace ‘MyClass’ equals
com.mirantis.Murano.services.windows.MyClass
41

Murano PL – common class structure- Extends
Extends: [base1, base2,..]
Extends: Base
Extends:
42
MyClass(base1,base2,..)
MyClass(Base)
MyClass(com.mirantis.Murano.Object)

Murano PL – common class structure- Properties
propertyName:
Contract: property
contract
Usage: property usage
Default: property default
43

Murano PL – common class structure- Properties-
Contract
YAQL expressions to define expected type of value and constraints imposed on this
property.
44

Murano PL – common class structure- Properties-
contract
45

Properties-Usage
 Usage states purpose of the property.
 indicates who and how can access the property
46

Properties-Default
 Specify the default value of the property
 Conform to the constraints set by contract.
47

Workflow
 Workflows are the methods that together describe how the entities
that are represented by MuranoPL classes deployed.
48
methodName:
Arguments:
- list
- of
- arguments
Body:
- list
- of
- instructions
3 types of instructions
Expressions
Assignment
Block constructs

Workflow-Expression
49
• YAQL expressions
• in a syntax like $obj.methodName(arguments)

Workflow-Assignment
50
• YAQL expressions
• single-key dictionaries with YAQL
expression as key and arbitrary
structure as a value

Workflow-Blocks
51
• Block constructs control program flow.

52

Dynamic UI
 Goal
 generate application creation forms "on-the-fly“
 YAML format
 Version - points out to which syntax version is used, optional
 Templates - optional, auxiliary section, using together with an Application
section, optional
 Application - object model description which will be used in application
deployment, required
 Forms - web form definitions, required
 YAQL
 https://wiki.openstack.org/wiki/Murano/Documentation/DynamicUI#Dyna
mic_UI_Definition_specification
53

Dynamic UI -telnet ui definition example
Version: 2
Templates:
instance:
?:
type: io.Murano.resources.Instance
name: generateHostname($.serviceConfiguration.unitNamingPattern, 1)
flavor: $.instanceConfiguration.flavor
image: $.instanceConfiguration.osImage
Application:
?:
type: io.Murano.apps.linux.Telnet
name: $.serviceConfiguration.name
instance: $instance 54
Underline IAAS leve resource definition
Application modeling by MuranoPL

Dynamic UI
55
UI elements is generated UI definition file

Dynamic UI -telnet ui definition example
Forms:
- serviceConfiguration:
fields:
- name: title
type: string
required: false
hidden: true
description: Telnet service that can be installed at linux
- name: name
type: string
label: Service Name
description: >-
Enter a desired name for a service. Just A-Z, a-z, 0-9, dash and
underline are allowed.
minLength: 2
maxLength: 64
regexpValidator: '^[-w]+$'
errorMessages:
invalid: Just letters, numbers, underscores and hyphens are allowed.
helpText: Just letters, numbers, underscores and hyphens are allowed. 56
Will be displayed in UI
Input Validation

57

Step6. Prepare application logo
in .png format
58

59

Prepare manifest file
 in YAML format
 should contains:
 Format - version of a manifest syntax format
 Type - package type. Valid choices are: Library and Application
 Name - human-readable application name
 Description - a brief description of an application
 Author - person or company name which created an application package
 Classes - MuranoPL class list, on which application deployment is based
 Tags - list of words, associated with this application. Will be helpful during the
search.Optional parameter
60

Prepare manifest file- example
Format: 1.0
Type: Application
FullName: io.Murano.apps.linux.Telnet
Name: Telnet
Description: |
Telnet is the traditional protocol for making remote console connections over TCP.
Author: 'Mirantis, Inc'
Tags: [Linux, connection]
Classes:
io.Murano.apps.linux.Telnet: telnet.yaml
UI: telnet.yaml
Logo: telnet.png
61

 Step 6. Compose a zip archive
62

Compose a zip archive
 Classes folder
 MuranoPL class definitions should be put inside this folder
 Resources folder
 This folder should contain Execution scripts
 Scripts folder
 All script files, needed for an application deployment should be placed here
 UI folder
 Place dynamic ui yaml definitions here
 logo.png
 Image file should be placed in the root folder. It can have any name, just specify it in
the manifest file.
 manifest.yaml
 Application manifest file. It's an application entry point. The file name is fixed.
63

Murano application anatomy by example
 manifest.yaml
 Logo.png
 UI
 Resources
 Classes
64

Resources
65
Deployment scripts
Deployment template in yaml format

Resources
FormatVersion: 2.0.0
Version: 1.0.0
Name: Deploy Apache
Parameters:
enablePHP: $enablePHP
Body: |
return apacheDeploy('{0}'.format(args.enablePHP)).stdout
Scripts:
apacheDeploy:
Type: Application
Version: 1.0.0
EntryPoint: runApacheDeploy.sh
Files:
- <installer.sh>
- <common.sh>
Options:
captureStdout: true
captureStderr: true
66

Classes
Namespaces:
=: io.Murano.apps.apache
std: io.Murano
res: io.Murano.resources
sys: io.Murano.system
Name: Apache
Extends: std:Application
Properties:
name:
Contract: $.string().notNull()
enablePHP:
Contract: $.bool()
Default: false
instance:
Contract: $.class(res:Instance).notNull() 67

Murano best practices
 Use Separate vHost in RabbitMQ
 advantages
 this prevents queue name collisions
 this prevents message stealing from queues
 this simplify debugging
 configure example
># rabbitmqctl add_user Muranouser Muranopassword
># rabbitmqctl set_user_tags Muranouser administrator
># rabbitmqctl add_vhost Muranovhost
># rabbitmqctl set_permissions -p Muranovhost Muranouser ".*" ".*" ".*"
70

Troubleshooting
71
Root cause:
By default ,Murano
needs a router name
that contains keyword
like Murano and
external network
solution:
modify the /etc/Murano/Murano.conf
in [networking] section
[networking]
…
external_network=<your_existing_network_name>
router_name=<your_exiting_router_name>
…

Troubleshooting(1)
 Issue
 Failed to provision instance, nova report failed to plug vif
72
Root cause:
This is a known issue
in juno
solution:

Troubleshooting(2)
 Issue
 access meta data failed
73
Root cause:
The neutron meta data
service cannot
authenticate against
keystone
solution:
vi /etc/neutron/metadata_agent.ini

Troubleshooting(3)
 Issue
 agent failed to execute the execution plan
74
Possible Root cause:
1. Murano-agent
cannot connect to
the rabbitmq
server
2. Murano-agent
failed find the
message in queue
solution:
As for No1., check the rabbitmq server status via cli
#rabbitmqctl status
As for No2.
login to vm instance
check the /etc/Murano/agent.conf to find the
input_queue id
find if the message by this input_queue in rabbitmq

Understand how Murano agent works
75
Murano-agent.conf
rabbitmq
VM
heat-
client
Murano-agent
❹
❸
❺
❷
❶ heat picks up the message from rabbitmq
❷ heat will generate the Murano-agent.conf using
cloud-init
❸ Murano agent will use this agent.conf file to find
the right rabbitmq server and the input_queue
❹ Murano agent will pickup the right message from
rabbitmq
❺ Murano agent will execute the execution plan
beard in the message
❶
execution
plans

/var/lib/heat-cfntools/cfn-userdata
root@Murano-tkuoai2lpm47x1-nwhcoi2lplzls1-bsojzo5io7vr:~# cat /var/lib/heat-cfntools/cfn-userdata
#!/bin/sh
service Murano-agent stop
AgentConfigBase64='W0RFRkFVTFRdCmRlYnVnPVRydWUKdmVyYm9zZT1UcnVlCmxvZ19maWxlID0gL3Zhci9sb2c
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hbF9ob3N0ID0gLwo='
if [ ! -d /etc/Murano ]; then
mkdir /etc/Murano
fi
echo $AgentConfigBase64 | base64 -d > /etc/Murano/agent.conf
chmod 664 /etc/Murano/agent.conf
service Murano-agent start
76
root@Murano-tkuoai2lpm47x1-nwhcoi2lplzls1-bsojzo5io7vr:~# echo $AgentConfigBase64 | base64 -d
[DEFAULT]
debug=True
verbose=True
log_file = /var/log/Murano-agent.log
storage=/var/Murano/plans
[rabbitmq]
# Input queue name
input_queue = eccecd50c1c4f495a9260cce5fa4cf9da-h5a54d508-b56f-4d46-82bd-715f24a20707
# Output routing key (usually queue name)
result_routing_key = -execution-results-tkuoai2lpm47x1
# Connection parameters to RabbitMQ service
# Hostname or IP address where RabbitMQ is located.
host = 192.85.180.138
# RabbitMQ port (5672 is a default)
port = 5672
# Use SSL for RabbitMQ connections (True or False)
ssl = false
# Path to SSL CA certificate or empty to allow self signed server certificate
ca_certs =
# RabbitMQ credentials. Fresh RabbitMQ installation has "guest" account with "guest" password.
login = guest
password = password
# RabbitMQ virtual host (vhost). Fresh RabbitMQ installation has "/" vhost preconfigured.
virtual_host = /

Murano-agent.conf
77
root@Murano-tkuoai2lpm47x1-nwhcoi2lplzls1-bsojzo5io7vr:~# echo $AgentConfigBase64 | base64 -d
[DEFAULT]
debug=True
verbose=True
log_file = /var/log/Murano-agent.log
storage=/var/Murano/plans
[rabbitmq]
# Input queue name
input_queue = eccecd50c1c4f495a9260cce5fa4cf9da-h5a54d508-b56f-4d46-82bd-715f24a20707
# Output routing key (usually queue name)
result_routing_key = -execution-results-tkuoai2lpm47x1
# Connection parameters to RabbitMQ service
# Hostname or IP address where RabbitMQ is located.
host = 192.85.180.138
# RabbitMQ port (5672 is a default)
port = 5672
# Use SSL for RabbitMQ connections (True or False)
ssl = false
# Path to SSL CA certificate or empty to allow self signed server certificate
ca_certs =
# RabbitMQ credentials. Fresh RabbitMQ installation has "guest" account with "guest" password.
login = guest
password = password
# RabbitMQ virtual host (vhost). Fresh RabbitMQ installation has "/" vhost preconfigured.
virtual_host = /

check the message in rabbitmq
 {"Body": "return apacheDeploy('{0}'.format(args.enablePHP)).stdoutn", "Files": {"f17cecd3704f4a958b3f4998617ce8dc": {"Body":
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"c6119b50f94244409ec0f89714a8a63a": {"Body": "#!/bin/bashn#nfunction include(){n curr_dir=$(cd $(dirname "$0") && pwd)n inc_file_path=$curr_dir/$1n if [ -f "$inc_file_path" ]; thenn . $inc_file_pathn elsen echo -e "$inc_file_path not found!"n
exit 1n fin}ninclude "common.sh"n# FirewallRulesnFW_RULE1='-I INPUT 1 -p tcp -m tcp --dport 443 -j ACCEPT -m comment --comment "by Murano, Apache server access on HTTPS port 443"'nFW_RULE2='-I INPUT 1 -p tcp -m tcp --dport 80 -j ACCEPT -m comment --
comment "by Murano, Apache server access on HTTP port 80"'nAPP=''nget_osn[[ $? -ne 0 ]] && exit 1ncase $DistroBasedOn inn "debian")n APP="apache2"n ;;n "redhat")n APP="httpd"n ;;nesacn_php=""nif [[ "$1" == "True" ]];
thenn _php="php"nfinAPPS_TO_INSTALL="$APP $_php $FW_BOOT_PKG"nbash installer.sh -p sys -i $APPS_TO_INSTALLnenable_init $APPnservice $APP start > /dev/null 2>&1nadd_fw_rule $FW_RULE1nadd_fw_rule $FW_RULE2n", "BodyType": "Text", "Name":
"runApacheDeploy.sh"}}, "Name": "Deploy Apache", "Parameters": {"enablePHP": false}, "FormatVersion": "2.0.0", "Version": "1.0.0", "Scripts": {"apacheDeploy": {"Files": ["f17cecd3704f4a958b3f4998617ce8dc", "6cbbe00d1e974b0b8d929c4fe5945b0b"], "EntryPoint":
"c6119b50f94244409ec0f89714a8a63a", "Version": "1.0.0", "Type": "Application", "Options": {"captureStdout": true, "captureStderr": true}}}, "Action": "Execute", "ID": "63aa0329592e4737bbb550b7be48498b"}
78

Execute real deployment via Murano agent
79
Base64 encrypted

Summary
 Murano is an OpenStack application catalog service
 As for end user
 provides a push-button-style application deployment
 As for cloud app publisher
 provides application design framework via complex modeling and dynamic UI definition to publish the app to openstack.
 As for cloud admin
 provides set of api to maintain the service catalog
 Pros:
 Flexible in application design using MuranoPL
 Using heat to deploy the underline IaaS infrasture
 Easy to use UI dashboard
 Support various deployment script Python, Shell, Powershell etc.
 Cons:
 Application design is complicated
 Have to learn the MuranoPL (kinda vendor lockin?)
 The Murano agent runs on only VM instead of Physical box
 Agent based the task execution(some customer don’t want to run agent in their instance)
81

References
 http://Murano-docs.github.io/latest/developers-guide/content/ch01.html
 https://Murano.readthedocs.org/en/latest/
 http://Murano-docs.github.io/0.4.1/administrators-guide/content/ch01.html
 http://Murano-docs.github.io/latest/getting-started/content/ch01.html
 https://wiki.openstack.org/wiki/Murano/Documentation/DynamicUI
 https://wiki.openstack.org/wiki/Murano/Documentation/How_to_create_applica
tion_package
 https://wiki.openstack.org/wiki/Murano#Murano_Screencasts
 https://wiki.openstack.org/wiki/Murano/Documentation/How_to_create_applica
tion_package
 https://github.com/ativelkov/yaql
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OpenStack Murano introduction

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