#+TITLE: Running web assembly in containers
#+AUTHOR: James Blair
#+DATE: <2023-01-31 Tue 13:00>


In our recent [[https://www.redhat.com/en/blog/red-hat-and-webassembly][blog post]] on Web Assembly we highlighted the implementation of WASM support into the [[https://github.com/containers/crun/][crun]] Open Container Initiative (OCI) runtime. This change paves the way for Podman and OpenShift to run WASM workloads.

This demo will step through how wasm


* Install wasm runtime


* Compile crun with wasm support

To demo this capability on our own machine we need to ensure we have a version of ~crun~ available that has support for WASM. In my case I needed to download and compile a newer release including the ~as follows:

#+NAME: Compile crun with wasmedge
#+begin_src tmate
# Install compile dependencies
sudo apt-get install --yes make git gcc build-essential pkgconf libtool libsystemd-dev libprotobuf-c-dev libcap-dev libseccomp-dev libyajl-dev libgcrypt20-dev go
-md2man autoconf python3 automake

# Clone the crun source
git clone https://github.com/containers/crun && cd crun

# Compile with wasm flag
./autogen.sh
./configure --with-wasmedge
make
sudo make install
#+end_src