Voir la source de How to create a CTin OSE 2.0


====== ho to create a CT in proxmox ======
Created vendredi 26 août 2016

Gonna create a CT with rocket chat https://rocket.chat/ as hangout substitue
**Preparation:** 
Check the minimum requirements, in my case i follow the VPS recomended as listed here https://rocket.chat/docs/installation/minimum-requirements

**Process:**

1- login in proxmox https://www.ose.la:8006/

2- identify the CT ID that you want to use, ensure it doesnt exist in the list and check this document : URL

	1-99 reserved for service VMs (server)
	100 reserved for nginx web reversed-proxy
	101 to 199 services containers (server)
	200 is reserved to LDAP and DNS services
	201 to 210 workstations 
	211to 250 reserved for VDI
	254 reserved for host proxy
	in my example i take the ID 108 

3- Document the additional reservation in : URLClick on "Create CT"

4- Click on "Create CT" and type the chosen ID 

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5- Define the hostname (explicit its main service/function) in may case rocketChat

6- Use the main root password defined for the ''network'' administrator and click on next

7- chose the storage pool (will be self explicit such as servers, consols, vdi, backup, ...)

8- Select the template then click next, in my case i am going to select Centos 7

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9- Define the disk size in my case 40GB, click next

	note: do not oversize unless required especially if you will use LVM that can be usefull to extend the disk later on. CT disks zill take the allocated size immediately

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10- Define the emulated CPU quantity and frequency, click next

	note: CPUs are not reserved to CT (they are in VM)

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11- Define the emulated memory and swap. 

	Is good practice to set the swap = Memory*2 but it depends on the function of your server and the hardware. 

	{{./pasted_image004.png}}

12- Define the network settings, then click next

	For most application use the bridge = vmbr2 (as per OSE proxmox setup guidance)

	VLan : not used at time of writing this, to define what VLan ID you should set your system check this URL.

	The IPv4 is based has the last octect = CT ID
		10.10.10.xxx for production systems
		10.10.11.xxx for pre-production or test only systems
		CIDR is set to 24 for standard systems, will be 16 only for workstations that requires cross communication amongst the different subnets

{{./pasted_image005.png}}


13- set the DNS setting, click next

	if controlcenter (VMID 200) is up then set the DNS it to 10.10.10.200, 
	else you can leave it to "use host setting"

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14- check all settings are correct then click Finish

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15- congratulations you created the CT, you can close the task viewer window and as soon as completed yuo can manage the newly installed CT through its console window


for the installation of Rocket chat on centos 7 i followed this guide https://rocket.chat/docs/installation/manual-installation/centos/
by default it uses these ports that zill need to be forwarded by my nginx reversed-web-proxy
export PORT=3000
export ROOT_URL=http://your-host-name.com-as-accessed-from-internet:3000/
export MONGO_URL=mongodb://localhost:27017/rocketchat