Author Archives: james

Start Xenserver VM from cmd line

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  1. Use vm-list to determine the name of the vm you want to start 
    [root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running


uuid ( RO)           : e0bac120-5676-50fc-7989-c11f5cf1537d
     name-label ( RW): puppet_host1
    power-state ( RO): running


uuid ( RO)           : cc502056-ee19-1c97-a90c-a6dfe766db67
     name-label ( RW): devops
    power-state ( RO): halted


uuid ( RO)           : c4555386-c498-4434-8926-3a42e607aabc
     name-label ( RW): networkadmin
    power-state ( RO): running


uuid ( RO)           : f312e45d-506e-a626-5b28-ba9a179f5524
     name-label ( RW): webserver
    power-state ( RO): halted


uuid ( RO)           : dc50cbba-ec9f-4fba-8135-d104a4dc0c61
     name-label ( RW): Control domain on host: xenserver
    power-state ( RO): running


uuid ( RO)           : e4177291-c3e8-8f6c-93ad-a127fe4e9b62
     name-label ( RW): puppet_host2
    power-state ( RO): running


uuid ( RO)           : dbe265c4-a19d-8211-eb57-161359509a2c
     name-label ( RW): puppet_master
    power-state ( RO): running
  2. Now use the name-label to start the VM 
    [root xenserver ~]# xe vm-start vm=webserver
[root xenserver ~]#

Xenserver list vms

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[root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running

...

Connect to a xen vm from xenconsole

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I’m having issues ssh’ing into a XenServer VM. Therefore, I want to connect via CMD line to control a xen vm.

  1. ssh to my-xen-server-box

    ssh my-xen-server-box
  2. List your VMs & take note of the uuid’s

    [root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running


uuid ( RO)           : e0bac120-5676-50fc-7989-c11f5cf1537d
     name-label ( RW): puppet_host1
    power-state ( RO): running


uuid ( RO)           : cc502056-ee19-1c97-a90c-a6dfe766db67
     name-label ( RW): devops
    power-state ( RO): halted


uuid ( RO)           : c4555386-c498-4434-8926-3a42e607aabc
     name-label ( RW): networkadmin
    power-state ( RO): running


uuid ( RO)           : f312e45d-506e-a626-5b28-ba9a179f5524
     name-label ( RW): webserver
    power-state ( RO): halted


uuid ( RO)           : dc50cbba-ec9f-4fba-8135-d104a4dc0c61
     name-label ( RW): Control domain on host: my-xen-server-box
    power-state ( RO): running


uuid ( RO)           : e4177291-c3e8-8f6c-93ad-a127fe4e9b62
     name-label ( RW): puppet_host2
    power-state ( RO): running


uuid ( RO)           : dbe265c4-a19d-8211-eb57-161359509a2c
     name-label ( RW): puppet_master
    power-state ( RO): running
  3. List your domains. Note the uuid column.

    [root my-xen-server-box ~]# list_domains
id |                                 uuid |  state
 0 | dc50cbba-ec9f-4fba-8135-d104a4dc0c61 |     R 
 2 | 60c1607b-1e51-bfe7-088e-a4a868b80f7f |    B  
 4 | e0bac120-5676-50fc-7989-c11f5cf1537d |    B  
 5 | e4177291-c3e8-8f6c-93ad-a127fe4e9b62 |    B  
 6 | dbe265c4-a19d-8211-eb57-161359509a2c |    B  
 7 | 96b5c2e3-5c76-a354-74ef-c324069a7c91 |    B  
 8 | c4555386-c498-4434-8926-3a42e607aabc |    B
  4. Look in the uuid column for your vm’s uuid. Take note of the id column value to the left
  5. Connect to this VM via xenconsole 

    [root my-xen-server-box ~]# /usr/lib/xen/bin/xenconsole 4


Ubuntu 14.04.1 LTS puppet-host1 hvc0

puppet-host1 login: username
Password: 
Last login: Sun Jan 18 11:24:28 PST 2015 on hvc0
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-44-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Tue Jan 27 11:10:39 PST 2015


0 packages can be updated.
0 updates are security updates.

Convert flac to m4a

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Since iTunes doesn’t support flac (Apple is just as proprietary as Micro$oft), I needed to convert a large number of flac files to m4a.

1) Download and setup ffmpeg . I dropped the 3 files in /usr/local/bin
2) 

for i in `find . -type f -name "*.flac"`; do echo $i; ffmpeg -i "$i" -acodec alac "$i.m4a"; done;

3) Drop the files in your iTunes directory under iTunes/Automatically\ Add\ to\ iTunes.localized/

git checkout branch

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  1. Clone repo

    git clone git@gitlab.sandlininc.com:product/component.git
  2. List Branches

    git branch -a
* master
  remotes/origin/HEAD -> origin/master
  remotes/origin/add_javadocs
  remotes/origin/implementation-1.0.7
  remotes/origin/implementation-1.0.8
  remotes/origin/implementation-1.0.x
  remotes/origin/implementation-2.0
  remotes/origin/implementation-2.0.0
  remotes/origin/master
  remotes/origin/product-3.5
  remotes/origin/product-4.0
  remotes/origin/trunk
  3. Switch to branch 
    git checkout -b product-3.5
Switched to a new branch 'product-3.5'

List tags in GIT

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List tags in repo

box:product user$ git tag
product-0.3
product-0.4
...
product-1.7
product-1.8

With a little more detail:

box:product user$ git tag -l -n1
product-0.3 [maven-release-plugin]  copy for tag product-0.3
product-0.4 [maven-release-plugin]  copy for tag product-0.4
...
product-1.7 [maven-release-plugin]  copy for tag product-1.7
product-1.8 [maven-release-plugin]  copy for tag product-1.8

With more detail:

box:product user$ for t in `git tag -l`; do git cat-file -p `git rev-parse $t`; done
object 965d40c9c8091c73871761034b78135793368fa0
type commit
tag product-0.3
tagger company <devops@company.com> Mon Oct 7 11:57:00 2013 -0700

[maven-release-plugin]  copy for tag product-0.3
object bff67daf9605abd87adb1122ea4e9081172ab99e
type commit
tag product-0.4
tagger company <devops@company.com> Mon Oct 7 12:26:45 2013 -0700

...
[maven-release-plugin]  copy for tag product-1.7
object 6a9cbd9107c1ea18a9b9b540b19c93a57f0b515d
type commit
tag product-1.8
tagger company <devops@company.com> Tue Dec 3 11:19:43 2013 -0800

Delete tag in git

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Delete a tag

box:product user$ git tag -d product-1.8
Deleted tag 'product-1.8' (was 2c41c34)
box:product user$ git push origin :refs/tags/product-1.8
To git@gitlab.companycorp.com:product2/uikit.git
 - [deleted]         product-1.8

Changing a remote’s URL

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source

git remote -v
# View existing remotes
# origin  https://github.com/user/repo.git (fetch)
# origin  https://github.com/user/repo.git (push)

git remote set-url origin https://github.com/user/repo2.git
# Change the 'origin' remote's URL

git remote -v
# Verify new remote URL
# origin  https://github.com/user/repo2.git (fetch)
# origin  https://github.com/user/repo2.git (push)