Delete Oracle Storage cloud Container using File Transfer Manager CLI – FTMCLI

In this post i will show you how to delete the container with all the objects in it, we are using storage container to configure Oracle Cloud backup and store database backup in it, But if you want to delete this container oracle cloud will not allow you to do this because the container should be empty.

there are different way to do this all of them using command line, the way are :-

  • Web Console — working only if the container is empty.
  • RESTful API
  • Java Library
  • Oracle Storage Cloud File Transfer Manager CLI
  • File Transfer Manager API
Each one of them having it’s own advantage and disadvantage you can check oracle documentation foe this from here 
Let’s talk about FTMCLI it’s very simple and easy to use it you should have JRE 7 or later download from here
and Download FTMCLI From here
  • Now to make it simple as you can when you download put everything in one folder extract them 
  • inside FTMCTL zip file you will see files called ftmcli.properties”, this file allow you to save the storage name and configuration of Storage cloud if you do this it will not necessary to add it each time in the command line i prefer to do this, trying to do it once better to do it each time, the file having different parameters like this :-
    • auth-url :- URL of your Oracle Storage Cloud
    • user :- Your user name.
    • service :- The cloud service name.
    • identity-domain :- The name of your identity domain.
    • storage-class :- default standrad or you can change it to archive
    • max-threads :- The maximum number of threads to be used in a request.
    • retries :-  The number of times that a request must be retried in case of failure.
    • segment-size :- The segment size in MB.
    • segments-container :- The container in which the segments must be stored during the upload process.
            You can get all the information from the console –> Storage cloud –> Details.
  • Now Let’s using the command line on your PC open cmd or ssh depend on your operating system if you having Linux you need to set the export the following Check the documentation here :-
    • export FTM_AUTH_URL
    • export FTM_USER
    • export FTM_SERVICE
    • export FTM_IDOMAIN
  • using this command java.exe -jar ftmcli.jar –help you can see how to use the FTMCLI file.
  • My container on Oracle storage cloud called DBBackup so i want to delete with the below command ;-

c:\FTMCL\bin>java.exe -jar C:\FTMCL\ftmcli.jar delete -f DBBackup –properties-f
ile c:\FTMCL\ftmcli.properties

The output should be like this :-

Cheers And Enjoy the cloud.
Osama Mustafa

Steps to Create Linux Container

After my last post about Docker Project, i start testing Linux Container but this time for lxc which is another amazing Package and should be used, if you installed and follow my steps in Previous steps here  then you can use lxc command without any suffer of installation 🙂

lxc stand for Linux Container.

Now i will start to describe how to create container using this command 

  • You need to know when lxc installed, it’s create file under /etc/lxc/ called default.conf this file should contain your network interface name and you need to add it.

[root@OEL6 ~]# cat /etc/lxc/default.conf
lxc.network.type = veth
lxc.network.link = docker0
lxc.network.flags = up

Sample output for ifconfig command :

docker0   Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:172.17.42.1  Bcast:0.0.0.0  Mask:255.255.0.0
          inet6 addr: fe80::28ce:eeff:fe80:1fc8/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:17 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1112 (1.0 KiB)  TX bytes:408 (408.0 b)

I used docker0 Interface because i already installed it , and configure the IP Address, if you don’t modify this file when you start container you will receive error :

[root@OEL6 container]# lxc-start –name test-container
lxc-start: failed to attach ‘vethaITNmu’ to the bridge ‘virbr0’ : No such device
lxc-start: failed to create netdev
lxc-start: failed to create the network
lxc-start: failed to spawn ‘test-container’

Anyway now after add the file with the right Interface name, you will be able to run and start working on lxc just follow the below steps :
  • Before Create any container you need to create Directory under /, if you don’t do this step another error will be appeared asking for this directory and telling you /container not found.

mkdir /container will solve the problem.

Now Let’s Start Creating new container called Test-container :

[root@OEL6 lxc]# lxc-create -n test-container -t oracle — -R 6.5

lxc-create: No config file specified, using the default config /etc/lxc/default.conf
Host is OracleServer 6.5
Create configuration file /container/test-container/config
Downloading release 6.5 for x86_64
Loaded plugins: refresh-packagekit, security
ol6_u5_base                                                     | 1.4 kB     00:00
ol6_u5_base/primary                                             | 3.2 MB     00:32
ol6_u5_base                                                                  8573/8573
Setting up Install Process

the above command will take some while to finish the configuration, it’s installing some packages needed by container you can have more than one container with different name.
After the creation is done you should be notice the below line :

Complete!
Rebuilding rpm database
Configuring container for Oracle Linux 6.5
Added container user:oracle password:oracle
Added container user:root password:root

Container : /container/test-container/rootfs
Config    : /container/test-container/config
Network   : eth0 (veth) on virbr0
‘oracle’ template installed
‘test-container’ created

the container is not started yet !!! so we need to do this using the below command :

[root@OEL6 lxc]# lxc-start -n test-container
                Welcome to Oracle Linux Server
Setting hostname test-container:                        [  OK  ]
Checking filesystems
                                                                        [  OK  ]
Mounting local filesystems:                                [  OK  ]
No such file or directory
Enabling /etc/fstab swaps:                                 [  OK  ]
Entering non-interactive startup
Bringing up loopback interface:                         [  OK  ]
Bringing up interface eth0:
Determining IP information for eth0… failed.
                                                                      [FAILED]
Starting system logger:                                    [  OK  ]
Mounting filesystems:                                      [  OK  ]
Generating SSH1 RSA host key: No such file or directory
                                                                      [  OK  ]
Generating SSH2 RSA host key: No such file or directory
                                                                     [  OK  ]
Generating SSH2 DSA host key: No such file or directory
                                                                     [  OK  ]
Starting sshd:                                                 [  OK  ]
Oracle Linux Server release 6.5
Kernel 3.8.13-16.2.1.el6uek.x86_64 on an x86_64
test-container login:

I will fix FAILED Later now you need to connect to the container using the above User name and password given to you in the above line.
After this 
[root@test-container ~]#
I am connected 🙂 

You can delete the container using command 

lxc-destroy -n test-container  

Reference :
1- Oracle Linux containers Here 
2- Oracle Linux 6.5 and Docker Here

Thank you
Osama mustafa