Openstack Nova APIs

Openstack Nova APIs

Diego Parrilla

¿Quién Soy?
Diego Parrilla
Stackops CEO & Founder
diego.parrilla@stackops.com
www.nubeblog.com
twitter.com/nubeblog
www.stackops.com
twitter.com/stackops
Diego Parrilla

La infraestructura ya no es una ventaja competitiva
 La infraestructura ya no es necesaria
 Se buscan formas pago por su uso
 Las formas de pago deben ser de alta granularidad
 Debe ser muy elástica, ¡igual tenemos éxito!
 Así aparece la Infraestructura como Servicio

Diego Parrilla
diego.parrilla@stackops.com 3

Las empresas empiezan a ‘infectarse’
 Tecnologías que usan IaaS y no ‘hierro’

 Procesos de gestión adaptadas al IaaS: metodologías
ágiles.

 La aplicación prevalece sobre la infraestructura

 Ingenieros con perfiles nuevos e ideas diferentes
(Devops)

Diego Parrilla
diego.parrilla@stackops.com 4

Software to provision virtual machines on
standard hardware at massive scale
OpenStack Compute

A community creating open source software to
build public and private clouds

Software to reliably store billions of objects
distributed across standard hardware

OpenStack
Object Storage
Diego Parrilla

OpenStack Community Today

Diego Parrilla

Company launched in March 2011 Figures

Total Downloads >22000

Platforms deployed with our distro (15/3/2012) >14000

Clients registered (15/3/2012) >3000

Diego Parrilla

 SysAdmins
 Python developers
 Java developers
 FrontEnd developers (ExtJS)

Diego Parrilla

¿Qué es un DevOp?
 Conjunto de principios, métodos y prácticas para la colaboración e integración entre
desarrolladores y operaciones.

 Combinación de ‘developer’ y ‘operations’

 Operaciones programadas usando este tipo de plataformas y herramientas.

 De operaciones reactivas, a unas más ágiles y automatizadas.

 Meta: producir software y/o servicios más rápida y eficientemente.

Diego Parrilla 9

Diseño de soluciones
 Los desarrolladores ganan poder en el diseño de las soluciones.

 La aplicación dicta sus propias necesidades de recursos.

 Desarrollo ‘pasa el marrón’ a Operaciones.

 Operaciones se defiende poniendo barreras. Actitud defensiva.

 Para evitarlo el ecosistema de la app debe gestionarse por software.
Diego Parrilla 10

Mantenimiento automatizado
 Aparecen nuevas herramientas que automatizan tareas cotidianas de los
SysAdmins

 Herramientas que se programan como si fuera un Framework más:
 Chef,
 Puppet,
 Fabric…

 Sistemas que se gestionan como servicios mediante APIS.

Diego Parrilla 11

Cloud Users

EC2 Openstack Glance Quantum

Northbridge APIs

Keystone

Southbridge APIs

Platform Admins

Admin StackOps

Diego Parrilla

http://api.openstack.org

Diego Parrilla

Diego Parrilla

Solicitar token a Keystone
curl -s -d
"{"auth":{"passwordCredentials":
{"username": "$NOVA_USERNAME", "password": "$NOVA_API_K
EY"}}}" -H "Content-type: application/json" http://
$HOST_IP:5000/v2.0/tokens

{"access": {"token": {"expires": "2012-03-24T11:38:43", "id":
"8fd10194-5e6c-41f6-9301-f83a1fcff9c7"}, "user": {"id": "1",
"roles": [{"id": "1", "name": "Admin"}, {"id": "3", "name":
"KeystoneAdmin"}, {"id": "4", "name":
"KeystoneServiceAdmin"}], "name": "admin"}}}

Diego Parrilla

Usando el token con Glance (I)
IMAGE_NAME='ttylinux-uec-amd64-12.1_2.6.35-22_1’
tar -zxf ./$IMAGE_NAME.tar.gz -C /tmp/images
RVAL=`glance add -A $AUTH_TOKEN name="ttylinux-kernel" is_public=true container_format=aki
disk_format=aki < /tmp/images/$IMAGE_NAME-vmlinuz*`
KERNEL_ID=`echo $RVAL | cut -d":" -f2 | tr -d " "`
glance add -A $AUTH_TOKEN name="ttylinux" is_public=true container_format=ami disk_format=ami
kernel_id=$KERNEL_ID < /tmp/images/$IMAGE_NAME.img

root@nova-controller:/var/lib/stackops# glance index -A $AUTH_TOKEN
ID Name Disk Format Container Format Size
---------------- ------------------------------ -------------------- -------------------- --------------
10 ttylinux ami ami 25165824
9 ttylinux-kernel aki aki 4404752
root@nova-controller:/var/lib/stackops#

Diego Parrilla

Usando el token con Glance (II)
curl -H "X-Auth-Token:$AUTH_TOKEN" http://GLANCE_HOST:9292/v1/images

{"images":
[{"name": "ttylinux", "container_format": "ami", "disk_format": "ami", "checksum":
"10047a119149e08fb206eea89832eee0", "id": 10, "size": 25165824},
{"name": "ttylinux-kernel", "container_format": "aki", "disk_format": "aki",
"checksum": "3ed2965d3f8d877a3ee3e061fd648e9a", "id": 9, "size": 4404752}]
}

Diego Parrilla

EC2 Query API vs Openstack API

Diego Parrilla

EC2 Query API
 Basada en GET y POST + Parámetros
 Cada petición debe ir firmada
?Action=DescribeImages
&AWSAccessKeyId=10QMXFEV71ZS32XQFTR2
&SignatureVersion=1
&Timestamp=2006-12-08T07%3A48%3A03Z
&Version=2007-01-03

 Message Authentication Code (HMAC) con función hash SHA-1

&Signature=GjH3941IBe6qsgQu%2Bk7FpCJjpnc%3D

Diego Parrilla

Openstack API
 REST
 Basada en el API de Rackspace
 Extensible:
 Quantum
 System Usage

?Action=DescribeImages
&AWSAccessKeyId=10QMXFEV71ZS32XQFTR2
&SignatureVersion=1
&Timestamp=2006-12-08T07%3A48%3A03Z
&Version=2007-01-03

Diego Parrilla

Obtener lista de servicios del tenant
 Necesitamos username, password y tenantId
curl -s -d "{"auth":{"passwordCredentials":
{"username": "$NOVA_USERNAME", "password": "$NOVA_API_KEY"}, "tenantId
":”$TENANT_ID"}}" -H "Content-type: application/json"
http://$HOST_IP:5000/v2.0/tokens
{"access":
{"token": {"expires": "2015-02-05T00:00:00", "id": "999888777666", "tenant": {"id": "1", "name": "admin”}},
"serviceCatalog": [
{"endpoints": [{"adminURL": "http://10.0.2.15:8774/v1.1/1", "region": "nova", "internalURL": "http://10.0.2.15:8774/
v1.1/1", "publicURL": "http://10.0.2.15:80/v1.1/1"}], "type": "compute", "name": "nova"},
{"endpoints": [{"adminURL": "http://10.0.2.15:9292/v1.1/1", "region": "nova", "internalURL": "http://10.0.2.15:9292/
v1.1/1", "publicURL": "http://10.0.2.15:9292/v1.1/1"}], "type": "image", "name": "glance"},
{"endpoints": [{"adminURL": "http://10.0.2.15:35357/v2.0", "region": "nova", "internalURL":
"http://10.0.2.15:5000/v2.0", "publicURL": "http://10.0.2.15:5000/v2.0"}], "type": "identity", "name":
"keystone"}],
"user": {"id": "1", "roles": [{"tenantId": "1", "id": "1", "name": "Admin"}, {"id": "1", "name": "Admin"}, {"id":
"3", "name": "KeystoneAdmin"}, {"id": "4", "name": "KeystoneServiceAdmin"}], "name": "admin"}}}

Diego Parrilla

Obtener lista de imagenes disponibles
 Necesitamos el token
curl -i http://10.0.2.15:80/v1.1/1/images/detail -H "X-Auth-Token: 999888777666"

{"images":
[{"status": "ACTIVE", "updated": "2012-03-23T12:06:15Z", "name":
"ttylinux", "links": [{"href": "http://10.0.2.15/v1.1/1/images/10",
"rel": "self"}, {"href": "http://10.0.2.15/1/images/10", "rel":
"bookmark"}], "created": "2012-03-23T12:06:14Z", "progress": 100,
"id": "10", "metadata": {"kernel_id": "9", "min_disk": 0, "min_ram":
0, "owner": null}},
{"status": "ACTIVE", "updated": "2012-03-23T12:06:13Z", "name":
"ttylinux-kernel", "links": [{"href": "http://10.0.2.15/v1.1/1/images/
9", "rel": "self"}, {"href": "http://10.0.2.15/1/images/9", "rel":
"bookmark"}], "created": "2012-03-23T12:06:13Z", "progress": 100,
"id": "9", "metadata": {"min_disk": 0, "owner": null, "min_ram": 0}}]}

Diego Parrilla

Obtener lista de ‘sabores’ disponibles
 Necesitamos el token
curl -i http://10.0.2.15:80/v1.1/1/flavors -H "X-Auth-Token: 999888777666"

{"flavors":
[{"id": 3, "links": [{"href": "http://10.0.2.15/v1.1/1/flavors/3",
"rel": "self"}, {"href": "http://10.0.2.15/1/flavors/3", "rel":
"bookmark"}], "name": "m1.medium"}, {"id": 4, "links": [{"href":
"http://10.0.2.15/v1.1/1/flavors/4", "rel": "self"}, {"href": "http://
10.0.2.15/1/flavors/4", "rel": "bookmark"}],"name": "m1.large"},
{"id": 1, "links": [{"href": "http://10.0.2.15/v1.1/1/flavors/1",
"bookmark"}], "name": "m1.tiny"}, {"id": 5, "links": [{"href":
"http://10.0.2.15/v1.1/1/flavors/5", "rel": "self"}, {"href": "http://
10.0.2.15/1/flavors/5", "rel": "bookmark"}], "name": "m1.xlarge"},
{"id": 2, "links": [{"href": "http://10.0.2.15/v1.1/1/flavors/2",
"bookmark"}], "name": "m1.small"}]}
Diego Parrilla

Obtener informacion m1.tiny
 Necesitamos el token la referencia a la m1.tiny
curl -i http://10.0.2.15:80/v1.1/1/flavors/1 -H "X-Auth-Token: 999888777666"

{"flavor":
{"rxtx_quota": 0,
"name": "m1.tiny",
"links": [{"href": "http://10.0.2.15/v1.1/1/flavors/1", "rel": "self"},
{"href": "http://10.0.2.15/1/flavors/1", "rel": "bookmark"}],
"ram": 512,
"vcpus": 1,
"rxtx_cap": 0,
"swap": 0,
"disk": 0,
"id": 1}}

Diego Parrilla

Arrancar una VM m1.tiny con ttylinux
 Necesitamos el token, la referencia a la m1.tiny y a la imagen ttylinux
curl -i http://10.0.2.15:80/v1.1/1/servers -X POST -d ' {"server": {"flavorRef":
"1", "name": "Test3", "imageRef": „10"}}' -H "X-Auth-Token: 999888777666" -H
"Accept: application/json" -H "Content-type: application/json"

{"server": {
"status": "BUILD",
"updated": "2012-03-24T01:29:40Z",
"hostId": "",
"user_id": "admin",
"name": "Test3",
"links": [{"href": "http://10.0.2.15/v1.1/1/servers/3", "rel": "self"}, {"href":
"http://10.0.2.15/1/servers/3", "rel": "bookmark"}],
"addresses": {},
"tenant_id": "1",
"image": {"id": “10", "links": [{"href": "http://10.0.2.15/1/images/10", "rel":
"bookmark"}]},
….: {}}}

Diego Parrilla

Ver el estado del despliegue de la VM
 Necesitamos el token y el ID de la VM
curl -i http://10.0.2.15:80/v1.1/1/servers/3 -H "X-Auth-Token: 999888777666"

{"server":
{"status": "ACTIVE",
"updated": "2012-03-24T01:29:48Z",
"hostId": "0efed51f62cbab80576f1d3e4c540a35d5aaa76dab99fe6a2aabf838",
"user_id": "admin",
"name": "Test3",
"links": [{"href": "http://10.0.2.15/v1.1/1/servers/3", "rel": "self"}, {"href": "http:/
/10.0.2.15/1/servers/3", "rel": "bookmark"}],
"addresses": {"service": [{"version": 4, "addr": "10.0.0.4"}]},
"tenant_id": "1",
"image": {"id": “10", "links": [{"href": "http://10.0.2.15/1/images/10", "rel":
"bookmark"}]},
"created": "2012-03-24T01:29:40Z",
"uuid": "c404217a-fccf-41ce-969f-3e442c4e1b92", …
…}}

Diego Parrilla

Terminar y borrar una VM
 Necesitamos el token y el UUID (No el ID) de la VM
curl -i http://10.0.2.15:80/v1.1/1/servers/632b9f58-20f3-4c95-9dca-bbae8c9e02b8 -X
DELETE -H "X-Auth-Token: 999888777666"
HTTP/1.1 204 No Content

Diego Parrilla

¡Muchas Gracias!
www.openstack.org
docs.openstack.org
apis.openstack.org
wiki.openstack.org
docs.stackops.org


Diego Parrilla

Openstack Nova APIs

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