Move to an external snapshot file.

.github/workflows/build.yml

@@ -10,13 +10,13 @@ jobs:
     - uses: actions/checkout@v2.3.4
     - name: Prepare
       id: prepare
-      run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"   
+      run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
     - name: Install dependencies
       run: |
         export DEBIAN_FRONTEND=noninteractive
         sudo add-apt-repository ppa:canonical-server/server-backports \
         && sudo apt-get update \
-        && sudo apt-get -y install qemu-utils qemu-system-x86
+        && sudo apt-get -y install qemu-utils qemu-system-x86 p7zip-full wget make curl unzip
     - name: Install pinned iPXE roms
       run: wget -O/tmp/roms.zip "$IPXE_ROMS" && sudo unzip -o /tmp/roms.zip -d /usr/lib/ipxe/qemu
     - name: Build image
@@ -43,3 +43,13 @@ jobs:
         asset_path: ./alpine.qcow2
         asset_name: alpine.qcow2
         asset_content_type: application/octet-stream
+    - name: Upload snapshot
+      id: upload_snapshot
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./snapshot.7z
+        asset_name: snapshot.7z
+        asset_content_type: application/octet-stream

.gitignore

@@ -1 +1,2 @@
 *.qcow2
+*.7z

Makefile

@@ -3,4 +3,4 @@ alpine.qcow2: setup.sh
 
 .PHONY: clean
 clean:
-	rm -f alpine.qcow2
+	rm -f alpine.qcow2 snapshot.7z

README.md

@@ -24,4 +24,4 @@ In this file, we will go over the structure and organization of this repo, and g
 
   The sudo on that last command isn't needed if your user has the proper permissions. (e.g. is part of the kvm group)
 
-  To test your newly-built image, copy alpine.qcow2 from this directory to Server/alpine.qcow2 in an existing Flashpoint installation. Options can be adjusted in Data/services.json if needed.
+  To test your newly-built image, copy alpine.qcow2 and snapshot.7z from this directory to the Server/ folder in an existing Flashpoint installation. Options can be adjusted in Data/services.json if needed.

snapshot.sh

@@ -9,5 +9,11 @@ while ! curl -sI 'http://127.0.0.1:22500/' >/dev/null; do
 done
 
 echo 'apache is ready .. snapshot in 10 seconds' && sleep 10
-echo 'savevm quick' | nc -q1 -w5 127.0.0.1 4445 >/dev/null
-kill -TERM "$pid"
+echo 'migrate "exec:7z a -si -mx=9 -mfb=64 snapshot.7z"' | nc -q1 -w5 127.0.0.1 4445 >/dev/null
+while pgrep -c 7z >/dev/null; do
+	echo 'Compressing snapshot... sleeping for 10 seconds' && sleep 10
+done
+# Give an extra 10s of wiggle room.
+sleep 10
+echo 'quit' | nc -q1 -w5 127.0.0.1 4445 >/dev/null
+sleep 5