Author Archives: mralcadmin

Unable to Start Docker Service on Windows 2016 TP5

So today i was playing with Docker and Containers on windows 2016 technical preview 5 with the following this guide:

https://msdn.microsoft.com/en-us/virtualization/windowscontainers/quick_start/quick_start_windows_server

I am running this a Virtual Machine in VMware 6 in my demo environment and was now planing ton use hyper-v containers just windows containers as i did not want to get involed with Nested Virtualization.

Every thing work until i try to start docker:

start-docker


PS C:\Users\Administrator> Start-Service docker

Start-Service : Failed to start service 'Docker Engine (docker)'.
At line:1 char:1
+ Start-Service docker
+ ~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.ServiceProcess.ServiceController:ServiceController) [Start-Service],
ServiceCommandException
+ FullyQualifiedErrorId : StartServiceFailed,Microsoft.PowerShell.Commands.StartServiceCommand

And in event viewer it display this:

Log Name: Application
Source: docker
Date: 23/09/2016 08:44:01
Event ID: 4
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: dockerwinhost
Description:
fatal: Error starting daemon: Error initializing network controller: Error creating default network: HNS failed with error : Failed to create network
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
 <System>
 <Provider Name="docker" />
 <EventID Qualifiers="0">4</EventID>
 <Level>2</Level>
 <Task>0</Task>
 <Keywords>0x80000000000000</Keywords>
 <TimeCreated SystemTime="2016-09-23T07:44:01.595966100Z" />
 <EventRecordID>297</EventRecordID>
 <Channel>Application</Channel>
 <Computer>dockerwinhost</Computer>
 <Security />
 </System>
 <EventData>
 <Data>Error starting daemon: Error initializing network controller: Error creating default network: HNS failed with error : Failed to create network</Data>
 </EventData>
</Event>

When Dockers first starts it try to create a nat network on the 172.16.0.0/12 network.  As my Demo Suite is on the 172.30.0.0 Network this class with  the nat network and cause network not to be created. To fix this Open up two powershell windows (Remember to run as Administrator). In the first windows type:

dockerd -H npipe:// -b "none"

This start docker with no network.Switch to the other power shell windows And type the following command to create a network which is not the 172.16.0.0/12 network

docker network create -d nat --subnet=192.168.0.0/24 --gateway=192.168.0.1 MyNatNetwork

Switch back to the other Powershell windows and close it. On the Powershell which is open type to start docker:


Start-Service docker

You should be able to carry on creating containers, The only problem is that i faced after that is that i could not access the containers using the nat mapping from a remote machone. Hopefully this a bug and fixed in RTM. I could access the container via the NAT IP address directly on the container host. To get the NAT IP address of the container type:


docker inspect "ID or Name of the container"

Again you will need to install firefox/chrome on the server if you trying acess to web application from the the container host.As edge does not seem to install by default in windows 2016 Server.

More info on these bugs see:

https://github.com/Microsoft/Virtualization-Documentation/issues/273

 

Admin Admin Podcast #046 – Show Notes – All About Docker and Containers

Al Been HPE event and learnt about Docker
Andy been having fun with Till Printers and Built Linux server running plex
Jerry has a new job!

VMs vs Docker

dockervsvm

Docker Links:

Digital Ocean Status Twitter Account 

BBC Programme Jerry was talking about in EP45 – Thanks David

 

Admin Admin Podcast #045 – Show Notes – BSD is so cool!

Al

Andy

Jerry

  • Jerry is looking for another job! “Devops” means “sysadmin”, but you can ask for more money 🙂
  • Decoupling mysql from web+db+mail server for performance reasons
    • Set up the new server
    • Move the data over
    • Reconfigure sites to point to new DB location
  • Migrating gitlab to a new server – Upgrade to latest version first before dumping out backup *.tar file
  • Ansible galaxy – other peoples’ roles
  • Made a Debian package with checkinstall – it’s really easy!
  • Finally finished installing the Icinga POC (I think)

 

 

Admin Admin Podcast #044 – Show Notes – Some Quick Tips and Tricks

Al,

Andy

  • Exact  Dental Software migration,
  • Office 365 migration
  • TTL

Jerry

VVS writers Checklist

Script FTP and FTP synchronizer

Find Saved Password in Windows 10

Reval internet connection tab

Upgrading PHP

Error establishing database connection

After:

Upgraded PHP 5.3 -> 5.6
Upgraded mysql 5.0 -> 5.5

Finally found the solution:

stack overflow:

SET PASSWORD FOR ‘username’@’host’ = PASSWORD(‘the password’)

old_passwords = no

Spot AWS???

Admin Admin Podcast #043 – Andy finds out about the wonders of Linux!

This week Andy discover the wonders Linux Server and tell us about the story of what he has been messing around with Ubuntu Server.

Show Notes: http://www.adminadminpodcast.co.uk/admin-admin-podcast-043-show-notes-andy-finds-out-about-the-wonders-of-linux/

 

Admin Admin Podcast #043 – Show Notes – Andy finds out about the wonders of Linux!

Microsoft Breaks GPOs

Al, Andy and Jerry’s Linux Tips

OpenSSL

WordPress on Windows box

Foolish Tech Show 1606-27 (Random Recent News)

Add New Disks in Ubuntu

#This Docs describes how to attached a new HD in linux this is blog is design to works with Ubuntu.

#Display all attched DISK
sudo lshw -class disk
#Show all attched HD
sudo fdisk -l

Disk /dev/sda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders, total 125829120 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0003fa82

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 121634815 60816384 83 Linux
/dev/sda2 121636862 125827071 2095105 5 Extended
/dev/sda5 121636864 125827071 2095104 82 Linux swap / Solaris

Disk /dev/sdb: 21.5 GB, 21474836480 bytes
213 heads, 34 sectors/track, 5791 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x36e7606e

Device Boot Start End Blocks Id System
/dev/sdb1 2048 41943039 20970496 83 Linux

Disk /dev/sdc: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders, total 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

### Initiate fdisk to partition the disk:

sudo fdisk /dev/sdb

# Select n to a add a new partition
# Select 1 to a add it as primary partition

#Format it as ext3

sudo mkfs -t ext3 /dev/sdb1

##Monut the New Disk

#Create a direcory

sudo mkdir /media/mynewdrive

#Mount into manually:

sudo mount /dev/sdb1 /media/mynewdrive

#Unmount into manually:

sudo mount /dev/sdb1 /media/mynewdrive

#Automatic Mount At Boot

sudo nano -Bw /etc/fstab

#add this line

/dev/sdb1 /media/backupdrive ext4 defaults 0 2

Admin Admin Podcast #042 Show Notes – It’s SSH not SSL

Al being dealing with:

Andy been dealing with printers again. Never10 and Windows 10 auto installing and GWX Control Panel

Jerry has been learning  more python, Dictionary and Lists? Git and branch. Private work migrate VMs and Nagios and Icinga