Where can I find docker daemon config file on boot2docker machine?
According to this topic: Dockerfile: Docker build can't download packages: centos->yum, debian/ubuntu->apt-get behind intranet
I want to set '--dns' in DOCKER_OPTS, but I can't find this config file either at /etc/default or anywhere else.
Inside boot2docker (boot2docker ssh) / docker-machine (docker-machine ssh default) , open or create the file /var/lib/boot2docker/profile and add the following line:
EXTRA_ARGS="--dns 192.168.1.145"
Also works for:
EXTRA_ARGS="--insecure-registry myinternaldocker"
After the change you need to restart the docker daemon:
sudo /etc/init.d/docker restart
Or leave boot2docker / docker-machine and restart the entire virtual machine:
boot2docker restart
# for docker machine
docker-machine restart default
Information taken from: https://groups.google.com/d/msg/docker-user/04pAX57WQ7g/_LI-z8iknxYJ
If you are using a mac you have to go to a fresh terminal and run:
boot2docker ssh
This will open a new terminal, from there you have to edit or create a file
sudo vi /var/lib/boot2docker/profile
and add the DNS that you would like to add, for example:
DOCKER_OPTS="-dns 8.8.8.8 -dns 8.8.4.4"
After that you need to restart boot2docker. Here I had some issues at the beginning so I close everything and run in a terminal:
boot2docker down
boot2docker up
you can also use:
boot2docker restart
I had to do it twice. After that I started again using the normal boot2docker icon and everything worked.
If you want to script things, you can do these steps on one ugly line:
boot2docker ssh 'sudo sh -c "echo \"EXTRA_ARGS=\\\"--dns 1.2.3.4\\\"\" > /var/lib/boot2docker/profile && sudo /etc/init.d/docker restart"'
Related
I'm working with a poor internet connection and trying to pull and run a image.
I wanted to download one layer at a time and per documentation tried adding a flat --max-concurrent-downloads like so:
docker run --rm -p 8787:8787 -e PASSWORD=blah --max-concurrent-downloads=1 rocker/verse
But this gives an error:
unknown flag: --max-concurrent-downloads See 'docker run --help'.
I tried typing docker run --help and interestingly did not see the option --max-concurrent-downloads.
I'm using Docker Toolbox since I'm on a old Mac.
Over here under l there's an option for --max-concurrent-downloads however this doesn't appear on my terminal when typing docker run --help
How can I change the default of downloading 3 layers at a time to just one?
From the official documentation: (https://docs.docker.com/engine/reference/commandline/pull/#concurrent-downloads)
You can pass --max-concurrent-downloads during a pull operation.
You can set --max-concurrent-downloads with the dockerd command.
If you're using the docker Desktop GUI for Mac or Windows:
You can edit the .json file directly in docker engine settings:
This setting needs to be passed to dockerd when starting the daemon, not to the docker client CLI. The dockerd process is running inside of a VM with docker-machine (and other docker desktop environments).
With docker-machine that is used in toolbox, you typically pass the engine flags on the docker-machine create command line, e.g.
docker-machine create --engine-opt max-concurrent-downloads=1
Once you have a created machine, you can follow the steps from these answers to modify the config of an already running machine, mainly:
SSH into your local docker VM.
note: if 'default' is not the name of your docker machine then substitute 'default' with your docker machine name $
docker-machine ssh default
Open Docker profile $ sudo vi /var/lib/boot2docker/profile
Then in that profile, you would add your --engine-opt max-concurrent-downloads=1.
Newer versions of docker desktop (along with any Linux install) make this much easier with a configuration menu daemon -> advanced where you can specify your daemon.json entries like:
{
"max-concurrent-downloads": 1
}
I'm working with a poor internet connection and trying to pull and run a image.
I wanted to download one layer at a time and per documentation tried adding a flat --max-concurrent-downloads like so:
docker run --rm -p 8787:8787 -e PASSWORD=blah --max-concurrent-downloads=1 rocker/verse
But this gives an error:
unknown flag: --max-concurrent-downloads See 'docker run --help'.
I tried typing docker run --help and interestingly did not see the option --max-concurrent-downloads.
I'm using Docker Toolbox since I'm on a old Mac.
Over here under l there's an option for --max-concurrent-downloads however this doesn't appear on my terminal when typing docker run --help
How can I change the default of downloading 3 layers at a time to just one?
From the official documentation: (https://docs.docker.com/engine/reference/commandline/pull/#concurrent-downloads)
You can pass --max-concurrent-downloads during a pull operation.
You can set --max-concurrent-downloads with the dockerd command.
If you're using the docker Desktop GUI for Mac or Windows:
You can edit the .json file directly in docker engine settings:
This setting needs to be passed to dockerd when starting the daemon, not to the docker client CLI. The dockerd process is running inside of a VM with docker-machine (and other docker desktop environments).
With docker-machine that is used in toolbox, you typically pass the engine flags on the docker-machine create command line, e.g.
docker-machine create --engine-opt max-concurrent-downloads=1
Once you have a created machine, you can follow the steps from these answers to modify the config of an already running machine, mainly:
SSH into your local docker VM.
note: if 'default' is not the name of your docker machine then substitute 'default' with your docker machine name $
docker-machine ssh default
Open Docker profile $ sudo vi /var/lib/boot2docker/profile
Then in that profile, you would add your --engine-opt max-concurrent-downloads=1.
Newer versions of docker desktop (along with any Linux install) make this much easier with a configuration menu daemon -> advanced where you can specify your daemon.json entries like:
{
"max-concurrent-downloads": 1
}
We can create a docker machine with --registry-mirror, e.g.:
docker-machine create -d virtualbox --engine-registry-mirror http://111222.m.daocloud.io mymachine
We will find the mirror url is in the boot2docker if we logged into the machine:
$ docker-machine ssh mymachine
$ cat /mnt/sda1/var/lib/boot2docker/profile
EXTRA_ARGS='
--label provider=virtualbox
--registry-mirror http://111222.m.daocloud.io
'
CACERT=/var/lib/boot2docker/ca.pem
DOCKER_HOST='-H tcp://0.0.0.0:2376'
DOCKER_STORAGE=aufs
DOCKER_TLS=auto
SERVERKEY=/var/lib/boot2docker/server-key.pem
SERVERCERT=/var/lib/boot2docker/server.pem
And it will use this mirror when pulling images.
But how to change the mirror after the machine is created?
I tried to midify this boot2docker/profile file, but it seems not take effect. How to do it?
After modifying boot2docker/profile, you need to restart the daemon (or the VM).
A command like docker-machine ssh mymachine sudo /etc/init.d/docker restart ought to be enough, but if not, just restart the VM (docker-machine restart mymachine) and your change should take.
I'm trying to something with Docker.
Steps I'm doing:
- Launch Docker Quickstart Terminal
- run docker run hello-world
Then I get error like:
bash: /c/Program Files/Docker Toolbox/docker: Bad address
I have to say that I was able to run hello-world image, but now I'm not. I don't know what happend.
I don't know if it matters however I had some problems at instalation step.
Since I have git installed in non standard location. However it seems git bash.exe working correctly for Docker.
My environment:
Windows 10
Git 2.5.0 (installed before Docker)
Docker Toolbox 1.9.1a
I have the same issue with bash: /c/Program Files/Docker Toolbox/docker: Bad address
I thought the problems is "bash doesn't support docker.exe".
SO I fix this problem by use powershell ,not the bash.
and if you use powershell maybe face this
An error occurred trying to connect: Get http://localhost:2375/v1.21/containers/json: dial tcp 127.0.0.1:2375: ConnectExenter code here
tcp: No connection could be made because the target machine actively refused it.
You can export variable from bash use export and import to powershell by this below
$env:DOCKER_HOST="tcp://192.168.99.100:2376"
$env:DOCKER_MACHINE_NAME="default"
$env:DOCKER_TLS_VERIFY="1"
$env:DOCKER_TOOLBOX_INSTALL_PATH="C:\\Program Files\\Docker Toolbox"
$env:DOCKER_CERT_PATH="C:\\Users\\kk580\\.docker\\machine\\machines\\default"
that's all
ps:I found this problem fixed by update git from 2.5.0 to 2.6.3.
Not entirely sure what the issue is, report it to the project on github. I find the docker mac and windows tools a bit flakey from time to time as they are still maturing. If you don't mind seeing what's underneath, you can try running docker-machine directly or set up your own host pretty quickly with Vagrant.
Docker Machine
Run a command or bash prompt to see what machines you have.
docker-machine ls
Create a machine if you don't have one listed
docker-machine create -d "virtualbox" default-docker
Then connect to the listed machine (or default-docker)
docker-machine ssh default-docker
Vagrant
If that doesn't work you can always use vagrant to manage VM's
Install VirtualBox (Which you probably have already if you installed the toolbox)
Reinstall Git, make sure you select the option for adding ALL the tools to your system PATH (for vagrant ssh)
Install Vagrant
Run a command or bash prompt
mkdir docker
cd docker
vagrant init debian/jessie64
vagrant up --provider virtualbox
Then to connect to your docker host you can run (from the same docker directory you created above)
vagrant ssh
Now your on the docker host, Install the latest docker the first time
curl https://get.docker.com/ | sudo sh
Docker
Now you have either a vagrant or docker-machine host up, you can docker away after that.
sudo docker run -ti busybox bash
You could also use PuTTY to connect to vagrant machines instead of installing git/ssh and running vagrant ssh. It provides a nicer shell experience but it requires some manual setup of the ssh connections.
Is there anyway to configure --allow-insecure-ssl for docker's deamon created with docker-machine.
commands:
docker-machine create --driver virtualbox dev
eval "$(docker-machine env dev)"
docker run myregistry:5000/busybox:latest echo 'hello world'
output:
Unable to find image 'myregistry:5000/busybox:latest' locally
2015/06/04 16:54:17 Error: v1 ping attempt failed with error: Get
https://myregistry:5000/v1/_ping: EOF. If this private
registry supports only HTTP or HTTPS with an unknown CA certificate,
please add `--insecure-registry myregistry:5000` to the
daemon's arguments. In the case of HTTPS, if you have access to the
registry's CA certificate, no need for the flag; simply place the CA
certificate at /etc/docker/certs.d/myregistry:5000/ca.crt
If you are running docker-machine version v0.2 stable, you can't set docker option in light way. But in next version v0.3 this problem was resolved with the creation parameters.
At this moment this feature it's on RC1,then you can use a version v0.3.0-RC-1 or wait for delivery the next stable version v0.3.0(tentatively Jun.16).
Then use parameter --engine-insecure-registry to set --allow-insecure-ssl for docker's daemon, for example:
docker-machine create --driver virtualbox --engine-insecure-registry myregistry:5000 dev
After that you can execute:
docker run myregistry:5000/busybox:latest echo 'hello world'
Additionally you can read about it on project doc.
If you want to add insecure registries to a docker-machine that is already created you can update the profile in the running docker VM.
Steps
SSH into your local docker VM.
note: if 'default' is not the name of your docker machine then substitute 'default' with your docker machine name
$ docker-machine ssh {machineName}
Open Docker profile
$ sudo vi /var/lib/boot2docker/profile
Add this line to the bottom of the profile file. If EXTRA_ARGS already exists, add the insecure registry flag to the EXTRA_ARGS. Substitute in the path[s] to your registries.
EXTRA_ARGS="
--insecure-registry myserver.pathTo.registry1:5000
--insecure-registry myserver.pathTo.registry2:5000
--insecure-registry myserver.pathTo.registry3:5000
"
Save the profile changes and 'exit' out of the docker-machine bash back to your machine. Then Restart Docker VM substituting in your docker-machine name
$ docker-machine restart {machineName}
Pull or push something from your registry to ensure it works
My Setup
docker-machine version : 0.6.0, build e27fb87
docker-machine driver : virtualbox
In case you want to add another registry once your docker-machine has already been created you will have to edit the configuration file:
vim ~/.docker/machine/machines/dev/config.json
Explained here: https://akrambenaissi.com/2015/11/17/addingediting-insecure-registry-to-docker-machine-afterwards/
env :
docker daemon :1.12.3
docker client :1.12.2
docker api :1.24
docker-machine :0.8.2
Before create machine
you can use the args to set one or multi insecure registry and registry mirrors .eg:
one registry
docker-machine create -d virtualbox --engine-insecure-registry hostname:5000 --engine-registry-mirror http://hostname:5000 n1
multi registrys
docker-machine create -d virtualbox --engine-insecure-registry hostname:5000 --engine-insecure-registry hostname:5001 --engine-registry-mirror http://hostname:5000 n1
After create the machine
you can edit the /var/lib/boot2docker/profile to add the registrys and mirrors
docker-machine ssh [machine-name]
vi /var/lib/boot2docker/profile
add the registry and mirrors to the EXTRA_ARGS
EXTRA_ARGS='
--label provider=virtualbox
--insecure-registry hostname:5000
--insecure-registry hostname:5001
--registry-mirror http://hostname:5000
--registry-mirror http://hostname:5001
now you need to restart the machine and check it
docker-machine restart [machine-name]
docker info
this method doesn`t work after create the machine
edit $USER/.docker/machine/machines/default/config.json
"EngineOptions": {
"InsecureRegistry": [
"XXX.XXX.virtual"
],
}
edit $USER/.docker/machine/machines/default/config.json
"EngineOptions": {
"InsecureRegistry": [
"XXX.XXX.virtual"
],
}