Open Stack Cheat Sheet V1

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  • 1. OpenStack Cheat Sheet Version : 1.0 Last modified : 2 Oct 2013 1. Nova 1.1 Management Services status: $ sudo nova­manage service list Enable/disable a service: $ sudo nova­manage service enable|disable ­­host=host ­­service=nova­compute Add a new network: $ sudo nova­manage network create ­­label vlan1       ­­fixed_range_v4 10.0.1.0/24 ­­num_networks 1      ­­network_size 256 ­­vlan 1 Remove a network, first disassociate it to a project: $ sudo nova­manage project scrub projectname $ sudo nova­manage network delete [cidr] List networks: $ sudo nova­manage network list Add a floating IPs address range: $ sudo nova­manage floating create ­­pool [my­pool]       ­­ip_range 172.17.1.32/27 1/4
  • 2. OpenStack Cheat Sheet Version : 1.0 Last modified : 2 Oct 2013 Add a floating to your tenant (you will get a floating IP address, but unused): $ nova floating­ip­create [my­pool] Associate IP to an instance (specific tenant, according to your credentials) $ nova add­floating­ip [my­instance] [ip] Check the status of the floating IPs (tenant related): $ nova floating­ip­list List all instances running on every compute node: $ sudo nova­manage vm list | column ­t 1.2 Common Add a new security group: $ nova secgroup­create web­server "Web server running" Add rule to this group: $ nova secgroup­add­rule web­server tcp 80 80 0.0.0.0/0 Add a security rules, allow ping and ssh: $ nova secgroup­add­rule web­server icmp ­1 ­1 0.0.0.0/0 $ nova secgroup­add­rule web­server tcp 22 22 0.0.0.0/0 2/4
  • 3. OpenStack Cheat Sheet Version : 1.0 Last modified : 2 Oct 2013 Create credential: $ nova keypair­add my_key > mey_key.pem $ chmod 600 *.pem List instances from the tenant in your credential: $ nova list Boot a new instance: $ nova boot ­­flavor [flavor­id] ­­image [image­id] ­­key_name [key1]        ­­security_groups [default] [instance­name] Delete an instance: $ nova delete [INSTANCE_ID] Take a snapshot from an instance but first commit the buffer cache to disk: my­instance:~$ sync my­instance:~$ sudo echo 3 | sudo tee /proc/sys/vm/drop_caches $ nova image­create [instance­id] [snapshot­name] Get precise information about a specific instance: $ nova show [instance­name] Perform a block_migration: $ nova live­migration ­­block_migrate [INSTANCE_ID] [TARGET_SERVER] 3/4
  • 4. OpenStack Cheat Sheet Version : 1.0 Last modified : 2 Oct 2013 2. Glance Add an image to glance (public): $ glance add name="my­image" is_public=True|False disk_format=qcow2       container_format=ovf architecture=x86_64 < my­image.img Check the glance backend: $ glance index Same with nova­common: $ nova image­list Set an image to public: $ glance update [image­id] is_public=true 3. Keystone List all the tenants: $ keystone tenant­list List all users: $ keystone user­list Create a new user: $ keystone user­create ­­name [username] ­­tenant_id [tenant­id]       ­­pass [password] ­­email [email] ­­enabled true 4/4