2015-02-18 10:06:13 +00:00
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Communications
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===============
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All the communication are done over HTTP using JSON.
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2015-01-14 00:05:26 +00:00
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Errors
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======
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In case of error a standard HTTP error is raise and you got a
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JSON like that
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.. code-block:: json
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{
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"status": 409,
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"message": "Conflict"
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}
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2015-02-25 08:47:55 +00:00
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2015-02-27 17:39:20 +00:00
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Sample session using curl
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=========================
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.. warning::
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Beware the output of this sample is truncated in order
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to simplify the understanding. Please read the
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documentation for the exact output.
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You can check the server version with a simple curl command:
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.. code-block:: shell-session
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# curl "http://localhost:8000/v1/version"
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{
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"version": "1.3.dev1"
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}
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The next step is to create a project.
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.. code-block:: shell-session
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2015-04-09 07:21:27 +00:00
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# curl -X POST "http://localhost:8000/v1/projects" -d '{"name": "test"}'
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2015-02-27 17:39:20 +00:00
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{
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"project_id": "42f9feee-3217-4104-981e-85d5f0a806ec",
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2015-04-07 13:28:18 +00:00
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"temporary": false,
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"name": "Test"
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2015-02-27 17:39:20 +00:00
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}
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With this project id we can now create two VPCS VM.
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.. code-block:: shell-session
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms" -d '{"name": "VPCS 1"}'
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{
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"console": 2000,
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"name": "VPCS 1",
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"project_id": "42f9feee-3217-4104-981e-85d5f0a806ec",
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"vm_id": "24d2e16b-fbef-4259-ae34-7bc21a41ee28"
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}%
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms" -d '{"name": "VPCS 2"}'
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{
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"console": 2001,
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"name": "VPCS 2",
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"vm_id": "daefc24a-103c-4717-8e01-6517d931c1ae"
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}
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Now we need to link the two VPCS. The first step is to allocate on the remote servers
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two UDP ports.
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.. code-block:: shell-session
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2015-04-06 09:57:05 +00:00
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/ports/udp" -d '{}'
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2015-02-27 17:39:20 +00:00
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{
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"udp_port": 10000
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}
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2015-04-06 09:57:05 +00:00
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/ports/udp" -d '{}'
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2015-02-27 17:39:20 +00:00
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{
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"udp_port": 10001
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}
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We can create the bidirectionnal communication between the two VPCS. The
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communication is made by creating two UDP tunnels.
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.. code-block:: shell-session
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms/24d2e16b-fbef-4259-ae34-7bc21a41ee28/adapters/0/ports/0/nio" -d '{"lport": 10000, "rhost": "127.0.0.1", "rport": 10001, "type": "nio_udp"}'
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{
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"lport": 10000,
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"rhost": "127.0.0.1",
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"rport": 10001,
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"type": "nio_udp"
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}
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms/daefc24a-103c-4717-8e01-6517d931c1ae/adapters/0/ports/0/nio" -d '{"lport": 10001, "rhost": "127.0.0.1", "rport": 10000, "type": "nio_udp"}'
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{
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"lport": 10001,
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"rhost": "127.0.0.1",
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"rport": 10000,
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"type": "nio_udp"
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}
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Now we can start the two VM
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.. code-block:: shell-session
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms/24d2e16b-fbef-4259-ae34-7bc21a41ee28/start" -d "{}"
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# curl -X POST "http://localhost:8000/v1/projects/42f9feee-3217-4104-981e-85d5f0a806ec/vpcs/vms/daefc24a-103c-4717-8e01-6517d931c1ae/start" -d '{}'
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Everything should be started now. You can connect via telnet to the different VM.
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The port is the field console in the create VM request.
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.. code-block:: shell-session
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# telnet 127.0.0.1 2000
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Trying 127.0.0.1...
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Connected to localhost.
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Escape character is '^]'.
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Welcome to Virtual PC Simulator, version 0.6
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Dedicated to Daling.
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Build time: Dec 29 2014 12:51:46
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Copyright (c) 2007-2014, Paul Meng (mirnshi@gmail.com)
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All rights reserved.
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VPCS is free software, distributed under the terms of the "BSD" licence.
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Source code and license can be found at vpcs.sf.net.
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For more information, please visit wiki.freecode.com.cn.
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Press '?' to get help.
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VPCS> ip 192.168.1.1
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Checking for duplicate address...
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PC1 : 192.168.1.1 255.255.255.0
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VPCS> disconnect
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Good-bye
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Connection closed by foreign host.
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# telnet 127.0.0.1 2001
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telnet 127.0.0.1 2001
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Trying 127.0.0.1...
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Connected to localhost.
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Escape character is '^]'.
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Welcome to Virtual PC Simulator, version 0.6
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Dedicated to Daling.
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Build time: Dec 29 2014 12:51:46
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Copyright (c) 2007-2014, Paul Meng (mirnshi@gmail.com)
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All rights reserved.
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VPCS is free software, distributed under the terms of the "BSD" licence.
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Source code and license can be found at vpcs.sf.net.
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For more information, please visit wiki.freecode.com.cn.
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Press '?' to get help.
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VPCS> ip 192.168.1.2
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Checking for duplicate address...
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PC1 : 192.168.1.2 255.255.255.0
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VPCS> ping 192.168.1.1
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84 bytes from 192.168.1.1 icmp_seq=1 ttl=64 time=0.179 ms
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84 bytes from 192.168.1.1 icmp_seq=2 ttl=64 time=0.218 ms
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84 bytes from 192.168.1.1 icmp_seq=3 ttl=64 time=0.190 ms
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84 bytes from 192.168.1.1 icmp_seq=4 ttl=64 time=0.198 ms
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84 bytes from 192.168.1.1 icmp_seq=5 ttl=64 time=0.185 ms
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VPCS> disconnect
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Good-bye
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Connection closed by foreign host.
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2015-02-25 08:47:55 +00:00
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Limitations
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============
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Concurrency
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------------
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A VM can't process multiple request in the same time. But you can make
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multiple request on multiple VM. It's transparent for the client
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when the first request on a VM start a lock is acquire for this VM id
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and released for the next request at the end. You can safely send all
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the requests in the same time and let the server manage an efficent concurrency.
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We think it can be a little slower for some operations, but it's remove a big
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complexity for the client due to the fact only some command on some VM can be
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concurrent.
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2015-02-25 09:29:20 +00:00
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Authentification
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-----------------
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In this version of the API you have no authentification system. If you
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listen on your network interface instead of localhost be carefull. Due
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to the nature of the multiple supported VM it's easy for an user to
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upload and run code on your machine.
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2015-06-26 12:41:58 +00:00
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Notifications
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=============
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2016-03-17 14:15:30 +00:00
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You can receive notification from the server if you listen the HTTP stream /notifications or the websocket.
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2015-06-26 12:41:58 +00:00
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The available notification are:
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2016-03-17 14:15:30 +00:00
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* ping
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* vm.created
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* vm.started
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* vm.stopped
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* log.error
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2015-06-26 12:41:58 +00:00
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2016-03-07 16:57:12 +00:00
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Previous versions
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=================
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API version 1
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-------------
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Shipped with GNS3 1.3 and 1.4. This API doesn't support the controller system.
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