Installing packages from Bioconda using Tykky

Bioconda is a popular Conda channel for bioinformatics software. It provides an easy method to install thousands of software packages related to biomedical research.

CSC has deprecated the direct usage of Conda installations on shared file systems of supercomputers (Puhti and Mahti) due to performance issues, but you can easily install packages from Bioconda using the Tykky tool instead.

All packages in Bioconda have a ready-made Docker container image available. While those images could be pulled and used directly, Tykky provides an easy method to install them in a way that they are usable without any special container commands.

Example: Installing MetaBAT2 from Bioconda

In this example we install MetaBAT2 package from Bioconda.

To find a software in Bioconda you can browse them alphabetically or use the search.

For our example we choose MetaBAT2 package.

In the page find the command to use Docker. In this case:

docker pull quay.io/biocontainers/metabat2:<tag>

From the command we need the Docker address:

quay.io/biocontainers/metabat2

From the Tags page select the desired version. In this case we choose the latest (the topmost) version.

2.15--h986a166_1

Combine the address and tag to form Docker URL:

docker://quay.io/biocontainers/metabat2:2.15--h986a166_1

Load Tykky module

module load tykky

We will use the Tykky wrap-container command.

The -w parameter needs to specify installation directory inside the container. For containers from Bioconda this is always /usr/local/bin. For containers from other sources, please see below.

The --prefix parameter indicates the directory where we want to install the software. The directory needs to exist, so we we need to create it first:

mkdir metabat-2.15

We can now install the software:

wrap-container -w /usr/local/bin docker://quay.io/biocontainers/metabat2:2.15--h986a166_1 --prefix metabat-2.15

After the installations finishes, the executables for the program will be in directory metabat-2.15/bin. It should be noted that these are not the actual commands, but rather wrapper scripts for the commands inside the container. You can, however, use them as if they were the actual commands.

E.g:

./metabat-2.15/bin/metabat --help

Adding the bin directory to your $PATH will work the same as activating the Conda environment in case of direct Conda installation.

When the wrap-container command finishes, it will show you the export command to do this. The actual command will depend on the installation directory, but will be something like:

export PATH=/projappl_12345/metabat-2.15/bin:$PATH

After this you can simply do:

metabat --help

Note

It is generally a bad idea to add Tykky installations permanently to you $PATH by e.g. editing your .bashrc file. The installation directories often contain common commands like python or perl. These are specific for each installation, and having them in your default $PATH will cause problems with running other software. It's best to add the installation directory to your $PATH only when you are using the program. You can e.g. add the export command to your batch job script.

Containers from other source

You can use similar steps to create wrappers for containers from other sources, such as the BioContainer registry or local image files.

The software installation location inside the container may vary, so it should be checked in order to set -w parameter correctly.

In this example we'll use a container for mono.

First build a local container image:

apptainer build mono.sif docker://mono:6.12.0.182-slim

You can now run command which inside the container to find out the installation location.

apptainer exec mono.sif which mono

In this case the directory is /usr/bin. To install you could use the Docker address above or specify the local image file just created (mono.sif).

wrap-container -w /usr/bin mono.sif --prefix mono

In some cases the installation location is not in $PATH inside the container, so which won't work. In those cases you could try running find inside the container instead:

apptainer exec mono.sif find / \( -type f -o -type l \) -name mono 2> /dev/null

In this case we search starting from the root directory(/) for either a file (-type f) or (-o) a symbolic link (-type l) named "mono" (-name mono).

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