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Docker containers for Bioconductor

Docker packages software into self-contained environments, called containers, that include necessary dependencies to run. Containers can run on any operating system including Windows and Mac (using modern Linux kernels) via the Docker engine.

Containers can also be deployed in the cloud using Amazon Elastic Container Service, Google Kubernetes Engine or Microsoft Azure Container Instances

<a name="top"></a>

<a name="quickstart"></a>

Quick start

  1. Install Docker

  2. Run container with Bioconductor and RStudio

     docker run \
 	-e PASSWORD=bioc \
 	-p 8787:8787 \
 	bioconductor/bioconductor_docker:devel

    This command will run the docker container bioconductor/bioconductor_docker:devel on your local machine.

    RStudio will be available on your web browser at http://localhost:8787. The USER is fixed to always being rstudio. The password in the above command is given as bioc but it can be set to anything. 8787 is the port being mapped between the docker container and your host machine. NOTE: password cannot be rstudio.

    The user is logged into the rstudio user by default.

<a name="intro"></a>

Why use Containers

With Bioconductor containers, we hope to enhance

Our aim is to provide up-to-date containers for the current release and devel versions of Bioconductor, and some older versions. Bioconductor’s Docker images are stored in Docker Hub; the source Dockerfile(s) are on Github.

Our release images and devel images are based on the Rocker Project - rocker/rstudio image and built when a Bioconductor release occurs.

<a name="goals"></a>

Goals for new container architecture

A few of our key goals to migrate to a new set of Docker containers are,

<a name="current"></a>

Current Containers

For each supported version of Bioconductor, we provide

Bioconductor's Docker images are stored in Docker Hub; the source Dockerfile(s) are in Github.

<a name="usage"></a>

Using the containers

A well organized guide to popular docker commands can be found here. For convenience, below are some commands to get you started. The following examples use the bioconductor/bioconductor_docker:devel image.

Note: that you may need to prepend sudo to all docker commands. But try them without first.

Prerequisites: On Linux, you need Docker installed and on Mac or Windows you need Docker Toolbox installed and running.

List which docker machines are available locally
docker images
List running containers
docker ps
List all containers
docker ps -a
Resume a stopped container
docker start <CONTAINER ID>
Shell into a running container
docker exec -it <CONTAINER ID> /bin/bash
Shutdown container
docker stop <CONTAINER ID>
Delete container
docker rm <CONTAINER ID>
Delete image
docker rmi bioconductor/bioconductor_docker:devel

<a name="running"></a>

Running the container

The above commands can be helpful but the real basics of running a Bioconductor Docker involves pulling the public image and running the container.

Get a copy of public docker image
docker pull bioconductor/bioconductor_docker:devel
To run RStudio Server:
docker run -e PASSWORD=<password> \
	-p 8787:8787 \
	bioconductor/bioconductor_docker:devel

You can then open a web browser pointing to your docker host on port 8787. If you're on Linux and using default settings, the docker host is 127.0.0.1 (or localhost, so the full URL to RStudio would be http://localhost:8787). If you are on Mac or Windows and running Docker Toolbox, you can determine the docker host with the docker-machine ip default command.

In the above command, -e PASSWORD= is setting the RStudio password and is required by the RStudio Docker image. It can be whatever you like except it cannot be rstudio. Log in to RStudio with the username rstudio and whatever password was specified.

If you want to run RStudio as a user on your host machine, in order to read/write files in a host directory, please read this.

NOTE: If you forget to add the tag devel or RELEASE_X_Y while using the bioconductor/bioconductor_docker image, it will automatically use the latest tag which points to the latest RELEASE version of Bioconductor.

To run R from the command line:
docker run -it --user rstudio bioconductor/bioconductor_docker:devel R
To open a Bash shell on the container:
docker run -it --user rstudio bioconductor/bioconductor_docker:devel bash

Note: The docker run command is very powerful and versatile. For full documentation, type docker run --help or visit the help page.

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<a name="mounting"></a>

Mounting Additional Volume

One such option for docker run is -v to mount an additional volume to the docker image. This might be useful for say mounting a local R install directory for use on the docker. The path on the docker image that should be mapped to a local R library directory is /usr/local/lib/R/host-site-library.

The follow example would mount my locally installed packages to this docker directory. In turn, that path is automatically loaded in the R .libPaths on the docker image and all of my locally installed package would be available for use.

<a name="dockercompose"></a>

Using docker-compose

To run the docker-compose file docker-compose.yaml from the same directory,

docker-compose up

Using docker-compose, the user can launch the image with a single command. The RStudio image is launched at http://localhost:8787.

The docker-composer.yaml includes settings so that the user doesn't have to worry about setting the port, password (default is bioc), or the volume to save libraries.

The library path, where all the packages are installed are automatically configured to use the volume $HOME/R/bioconductor_docker/<bioconductor_version>, in the case of the Bioconductor version 3.14, it would be $HOME/R/bioconductor_docker/3.14. This location is mounted on to the path, /usr/local/lib/R/host-site-library, which is the first value in your search path for packages if you check .libPaths().

When the user starts the docker image using docker-compose, it will recognize previously mounted libraries with the apprpriate bioconductor version, and save users time reinstalling the previously installed packages.

To add another volume for data, it's possible to modify the docker-compose.yml to include another volume, so all the data is stored in the same location as well.

volumes:
	- ${HOME}/R/bioconductor_docker/3.14:/usr/local/lib/R/host-site-library
	- ${HOME}/R/data:/home/rstudio

To run in the background, use the -d or --detach flag,

docker-compose up -d

If the image is run in a detached state, the container-name can be used to exec into the terminal if the user wishes root access in a terminal, without using RStudio.

Within the root user, additional system dependencies can be installed to make the image fit the needs of the user.

docker exec -it bioc-3.14 bash

For more information on how to use docker-compose, use the official docker-compose reference.

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<a name="modify"></a>

Modifying the images

There are two ways to modify these images:

  1. Making changes in a running container and then committing them using the docker commit command.

     docker commit <CONTAINER ID> <name for new image>

  2. Using a Dockerfile to declare the changes you want to make.

The second way is the recommended way. Both ways are documented here.

Example 1:

My goal is to add a python package 'tensorflow' and to install a Bioconductor package called 'scAlign' on top of the base docker image i.e bioconductor/bioconductor_docker:devel.

As a first step, my Dockerfile should inherit from the bioconductor/bioconductor_docker:devel image, and build from there. Since all docker images are Linux environments, and this container is specifically 'Debian', I need some knowledge on how to install libraries on Linux machines.

In your new Dockerfile, you can have the following commands

# Docker inheritance
FROM bioconductor/bioconductor_docker:devel

# Update apt-get
RUN apt-get update \
	## Install the python package tensorflow
	&& pip install tensorflow		\
	## Remove packages in '/var/cache/' and 'var/lib'
	## to remove side-effects of apt-get update
	&& apt-get clean \
	&& rm -rf /var/lib/apt/lists/*

# Install required Bioconductor package
RUN R -e 'BiocManager::install("scAlign")'

This Dockerfile can be built with the command, (note: you can name it however you want)

docker build -t bioconductor_docker_tensorflow:devel .

This will let you use the docker image with 'tensorflow' installed and also scAlign package.

docker run -p 8787:8787 -e PASSWORD=bioc bioconductor_docker_tensorflow:devel

Example 2:

My goal is to add all the required infrastructure to be able to compile vignettes and knit documents into pdf files. My Dockerfile will look like the following for this requirement,

# This docker image has LaTeX to build the vignettes
FROM bioconductor/bioconductor_docker:devel

# Update apt-get
RUN apt-get update \
	&& apt-get install -y --no-install-recommends apt-utils \
	&& apt-get install -y --no-install-recommends \
	texlive \
	texlive-latex-extra \
	texlive-fonts-extra \
	texlive-bibtex-extra \
	texlive-science \
	texi2html \
	texinfo \
	&& apt-get clean \
	&& rm -rf /var/lib/apt/lists/*

## Install BiocStyle
RUN R -e 'BiocManager::install("BiocStyle")'

This Dockerfile can be built with the command,

docker build -t bioconductor_docker_latex:devel .

This will let you use the docker image as needed to build and compile vignettes for packages.

docker run -p 8787:8787 -e PASSWORD=bioc bioconductor_docker_latex:devel
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<a name="singularity"></a>

Singularity

The latest bioconductor/bioconductor_docker images are available on Singularity Hub as well. Singularity is a container runtime just like Docker, and Singularity Hub is the host registry for Singularity containers.

You can find the Singularity containers collection on this link https://singularity-hub.org/collections/3955.

These images are particularly useful on compute clusters where you don't need admin access. You need to have the module singularity installed. See https://singularity.lbl.gov/docs-installation (contact your IT department when in doubt).

If you have Singularity installed on your machine or cluster are:

Inspect available modules

module available

If Singularity is available,

module load singularity

Please check this link for specific usage instructions relevant to Singularity containers and their usage https://www.rocker-project.org/use/singularity/.

<a name="msft"></a>

Microsoft Azure Container Instances

If you are a Microsoft Azure user, you have an option to run your containers using images hosted on Microsoft Container Registry.

Microsoft Container Registry (MCR) is the primary Registry for all Microsoft Published docker images that offers a reliable and trustworthy delivery of container images with a syndicated catalog

<a name="mcr"></a>

Using containers hosted on Microsoft Container Registry

You can learn more about the bioconductor_docker image hosted on Micosoft Container Registry here.

Pull the bioconductor_docker image from Microsoft Container Registry, specifying your tag of choice. Check here for the list of tags under "Full Tag Listing":

docker pull mcr.microsoft.com/bioconductor/bioconductor_docker:<tag>

To pull the latest image:

docker pull mcr.microsoft.com/bioconductor/bioconductor_docker:latest

Example: Run RStudio interactively from your docker container

To run RStudio in a web browser session, run the following and access it from 127.0.0.1:8787. The default user name is "rstudio" and you can specify your password as the example below (here, it is set to 'bioc'):

docker run --name bioconductor_docker_rstudio \
	-v ~/host-site-library:/usr/local/lib/R/host-site-library \
	-e PASSWORD='bioc'                               \
	-p 8787:8787                                     \
	mcr.microsoft.com/bioconductor/bioconductor_docker:latest

To run RStudio on your terminal:

docker run --name bioconductor_docker_rstudio \
	-it                                            \
	-v ~/host-site-library:/usr/local/lib/R/host-site-library \
	-e PASSWORD='bioc'                               \
	-p 8787:8787                                     \
	mcr.microsoft.com/bioconductor/bioconductor_docker:latest R
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<a name="aci"></a>

Use Azure Container Instances to run bioconductor images on-demand on Azure

Azure Container Instances or ACI provide a way to run Docker containers on-demand in a managed, serverless Azure environment. To learn more, check out the documentation here.

Run bioconductor images using ACI

Prerequisites:

  1. An Azure account and a subscription you can create resources in

  2. Azure CLI

  3. Create a resource group within your subscription

You can run Azure CLI or "az cli" commands to create, stop, restart or delete container instances running any bioconductor image - either official images by bioconductor or images available on Microsoft Container Registry. To get started, ensure you have an Azure account and a subscription or create a free account.

Follow this tutorial to get familiar with Azure Container Instances.

To run the bioconductor image hosted on Microsoft Container Registry or MCR, create a new resource group in your Azure subscription. Then run the following command using Azure CLI. You can customize any or all of the inputs. This command is adapted to run on an Ubuntu machine:

az container create \
	--resource-group resourceGroupName \
	--name mcr-bioconductor \
	--image mcr.microsoft.com/bioconductor/bioconductor_docker \
	--cpu 2 \
	--memory 4 \
	--dns-name-label mcr-bioconductor \
	--ports 8787 \
	--environment-variables 'PASSWORD'='bioc'

When completed, run this command to get the fully qualified domain name(FQDN):

az container show \
	--resource-group resourceGroupName \
	--name mcr-bioconductor \
	--query "{FQDN:ipAddress.fqdn,ProvisioningState:provisioningState}" \
	--out table

Here we expose port 8787 on this publicly accessible FQDN. You may have to choose a different "dns-name-label" to avoid conflicts. By default, the username for RStudio is "rstudio" (similar to the official bioconductor docker image). Here we set the password for RStudio to 'bioc' in the environment variable configuration. The --cpu and --memory (in GB) configurations can also be customized to your needs. By default, ACI have 1 cpu core and 1.5GB of memory assigned.

To learn more about what you can configure and customize when creating an ACI, run:

az container create --help

Mount Azure File Share to persist analysis data between sessions

To ensure that the data persists between different analysis sessions when using Azure Container Instances, you can use the feature to mount Azure file share to your container instance. In this example, we will create an ACI that mounts the "/home/rstudio" directory in RStudio to an Azure File Share.

Prerequisites:

  1. An Azure account and a subscription you can create resources in

  2. Azure CLI

  3. Create a resource group within your subscription

Now, run the following Azure CLI commands to:

  1. Create an Azure Storage account

  2. Create an Azure file share

  3. Get the storage account key

# Change these four parameters as needed
ACI_PERS_RESOURCE_GROUP=resourceGroupName
ACI_PERS_STORAGE_ACCOUNT_NAME=storageAccountName
ACI_PERS_LOCATION=eastus
ACI_PERS_SHARE_NAME=fileShareName

# Step1: Create the storage account with the parameters
az storage account create \
	--resource-group $ACI_PERS_RESOURCE_GROUP \
	--name $ACI_PERS_STORAGE_ACCOUNT_NAME \
	--location $ACI_PERS_LOCATION \
	--sku Standard_LRS

# Step2: Create the file share
az storage share create \
	--name $ACI_PERS_SHARE_NAME \
	--account-name $ACI_PERS_STORAGE_ACCOUNT_NAME

# Step3: Get the storage account key
STORAGE_KEY=$(az storage account keys list \
	--resource-group $ACI_PERS_RESOURCE_GROUP \
	--account-name $ACI_PERS_STORAGE_ACCOUNT_NAME \
	--query "[0].value" --output tsv)
echo $STORAGE_KEY

Here is an example command to mount an Azure file share to an ACI running bioconductor. This command is adapted to run on an Ubuntu machine:

az container create \
	--resource-group resourceGroupName \
	--name mcr-bioconductor-fs \
	--image mcr.microsoft.com/bioconductor/bioconductor_docker \
	--dns-name-label mcr-bioconductor-fs \
	--cpu 2 \
	--memory 4 \
	--ports 8787 \
	--environment-variables 'PASSWORD'='bioc' \
	--azure-file-volume-account-name storageAccountName \
	--azure-file-volume-account-key $STORAGE_KEY \
	--azure-file-volume-share-name fileShareName \
	--azure-file-volume-mount-path /home/rstudio

When completed, run this command to get the fully qualified domain name or FQDN:

az container show \
	--resource-group resourceGroupName \
	--name mcr-bioconductor-fs \
	--query "{FQDN:ipAddress.fqdn,ProvisioningState:provisioningState}" \
	--out table

Here we expose port 8787 on this publicly accessible FQDN. You may have to choose a different "dns-name-label" to avoid conflicts. By default, the username for RStudio is "rstudio" (similar to the official bioconductor docker image). Here we set the password for RStudio to 'bioc' in the environment variable configuration. The "--cpu" and "--memory" (in GB) configurations can also be customized to your needs. By default, ACI have 1 cpu core and 1.5GB of memory assigned. Here, we also mount RStudio "/home/rstudio" directory to a persistent Azure file share named "fileShareName" in the storage account specified. When you stop or restart an ACI, this data will not be lost.

Stop, Start, Restart or Delete containers running on ACI

You can run Azure CLI commands to stop, start, restart or delete container instances on Azure. You can find all the commands and options here.

Replace containerName and resourceGroupName in the following CLI commands.

Stop the container instance
az container stop -n containerName -g resourceGroupName
Start the container instance
az container start -n containerName -g resourceGroupName
Restart the container instance
az container restart -n containerName -g resourceGroupName
Delete the container instance
az container delete -n containerName -g resourceGroupName

To not be prompted for confirmation for deleting the ACI:

az container delete -n containerName -g resourceGroupName -y

To troubleshoot any issues when using Azure Container Instances, try out the recommendations here. For feedback or further issues, contact us via email.

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<a name="contribute"></a>

How to Contribute

There is a comprehensive list of best practices and standards on how community members can contribute images here.

link: https://github.com/Bioconductor/bioconductor_docker/blob/master/best_practices.md

<a name="deprecation"></a>

Deprecation Notice

For previous users of docker containers for Bioconductor, please note that we are deprecating the following images. These images were maintained by Bioconductor Core, and also the community.

<a name="legacy"></a>

Legacy Containers

These images are NO LONGER MAINTAINED and updated. They will however be available to use should a user choose. They are not supported anymore by the Bioconductor Core team.

Bioconductor Core Team: bioc-issue-bot@bioconductor.org

Steffen Neumann: sneumann@ipb-halle.de, Maintained as part of the "PhenoMeNal, funded by Horizon2020 grant 654241"

Laurent Gatto: lg390@cam.ac.uk

RGLab: wjiang2@fredhutch.org

First iteration containers

<a name="reason"></a>

Reason for deprecation

The new Bioconductor Docker image bioconductor/bioconductor_docker makes it possible to easily install any package the user chooses since all the system dependencies are built in to this new image. The previous images did not have all the system dependencies built in to the image. The new installation of packages can be done with,

BiocManager::install(c("package_name", "package_name"))

Other reasons for deprecation:

<a name="issues"></a>

Reporting Issues

Please report issues with the new set of images on GitHub Issues or the Bioc-devel mailing list.

These issues can be questions about anything related to this piece of software such as, usage, extending Docker images, enhancements, and bug reports.

<a name="acknowledgements"></a>

Acknowledgements

Thanks to the rocker project for providing the R/RStudio Server containers upon which ours are based.