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== Container Checkpoint/Restore ==
== Container Checkpoint/Restore ==
<code>
<pre>
# Create a container rootfs
mkdir -p alpine-container/rootfs && cd alpine-container
mkdir -p alpine-container/rootfs && cd alpine-container
wget https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/x86_64/alpine-minirootfs-3.22.2-x86_64.tar.gz
wget https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/x86_64/alpine-minirootfs-3.22.2-x86_64.tar.gz
tar -xzf alpine-minirootfs-3.22.2-x86_64.tar.gz -C rootfs
tar -xzf alpine-minirootfs-3.22.2-x86_64.tar.gz -C rootfs
rm -f alpine-minirootfs-3.22.2-x86_64.tar.gz
rm -f alpine-minirootfs-3.22.2-x86_64.tar.gz
# Create container spec file
runc spec
runc spec
# Set looper command
sed -i 's/"sh"/\"sh -c '\''i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'\'\"'/' config.json
sed -i 's/"sh"/\"sh -c '\''i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'\'\"'/' config.json
# Disable interactive terminal
sed -i 's/"terminal": true/"terminal": false/g' config.json
sed -i 's/"terminal": true/"terminal": false/g' config.json
# Run container in the background
sudo runc run -d looper 0</dev/null 1>/dev/null 2>/dev/null
sudo runc run -d looper 0</dev/null 1>/dev/null 2>/dev/null
</code>
</pre>