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+.. _snap_doc:
+
+VPP Snap Build
+==============
+
+The external dependency package will not build in the snapcraft vm. The
+path of least resistance is to copy it to the root of the (original)
+workspace before running the prep script.
+
+Snapcraft has mount issues except under /home. Run the prep script and
+copy the entire directory (including the .tgz file) under
+/home/yourself.
+
+Run the prep script
+-------------------
+
+::
+
+     $ cd <vpp-workspace>/extras/snap
+     $ ./prep
+
+Copy data to /home (if necessary)
+
+::
+
+     $ mkdir /home/xxx
+     $ cd <vpp-workspace>/extras/snap
+     $ cp * /home/xxx
+
+   Set snapcraft environment variables
+   -----------------------------------
+
+   Minimum requirements:
+
+SNAPCRAFT_BUILD_ENVIRONMENT_MEMORY=16G
+SNAPCRAFT_BUILD_ENVIRONMENT_DISK=32G
+
+::
+
+
+   Optional:
+
+SNAPCRAFT_BUILD_ENVIRONMENT_CPU=8 SNAPCRAFT_ENABLE_DEVELOPER_DEBUG=yes
+
+::
+
+
+   Run snapcraft
+   -------------
+
+   With luck, simply running snapcraft will produce the snap
+
+$ snapcraft [–debug]
+
+::
+
+
+   Rerunning snapcraft phases
+   --------------------------
+
+   Here's how to (re)run individual phases, to avoid starting from
+   scratch N times in case of errors:
+
+snapcraft pull [] snapcraft build [] snapcraft stage [] snapcraft prime
+[] snapcraft snap or snapcraft
+
+::
+
+
+   Restart without rebuilding VM
+   -----------------------------
+
+   To restart from scratch without rebuilding the VM:
+
+snapcraft clean vpp
+
+::
+
+
+   Delete (all) snapcraft VMs
+   --------------------------
+
+for vm in $(multipass list \| awk ‘{print $1}’ \| grep ^snapcraft-); do
+multipass delete $vm –purge done \``\`