Merge pull request #699 from b-ehlers/master

Create basic Debian packer template

packer/debian/README.md

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+# Packer for Debian based GNS3 appliances
+
+## Packer Version Dependency
+
+Packer versions 1.6.0 or later do not accept templates
+that use the `iso_checksum_type` attribute.
+To use these newer versions, you must delete the line
+containing `iso_checksum_type` from debian.json.
+
+
+## Debian CLI installation
+
+```
+packer build debian.json
+```

packer/debian/debian-cloud-init-data.iso

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+../../cloud-init/Debian/debian-cloud-init-data.iso

packer/debian/debian.json

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+{
+    "variables": {
+        "iso_url": "https://cloud.debian.org/images/cloud/bullseye/20220911-1135/debian-11-genericcloud-amd64-20220911-1135.qcow2",
+        "iso_checksum": "2808ca1fa62c6a0a5fa92b49b6bc43755fb30a7eb5d4f753f372017474fbd54c",
+        "disk_size": "2G",
+        "vm_name": "debian.qcow2",
+        "setup_script": "debian.sh"
+    },
+    "provisioners": [
+        {
+            "type": "shell",
+            "script": "scripts/remove_cloud-init_network.sh"
+        },
+        {
+            "type": "shell",
+            "script": "scripts/{{user `setup_script`}}"
+        },
+        {
+            "type": "shell",
+            "script": "scripts/post_setup.sh"
+        }
+    ],
+    "builders": [
+        {
+            "type": "qemu",
+            "disk_image": true,
+            "disk_size": "{{user `disk_size`}}",
+            "iso_url": "{{user `iso_url`}}",
+            "iso_checksum": "{{user `iso_checksum`}}",
+            "iso_checksum_type": "sha256",
+            "disk_interface": "virtio-scsi",
+            "disk_compression": true,
+            "headless": true,
+            "net_device": "virtio-net-pci",
+            "qemuargs": [ [ "-cdrom", "debian-cloud-init-data.iso" ] ],
+            "shutdown_command": "sudo poweroff",
+            "ssh_username": "debian",
+            "ssh_password": "debian",
+            "ssh_wait_timeout": "30s",
+            "vm_name": "{{user `vm_name`}}"
+        }
+    ]
+}

packer/debian/scripts/debian.sh

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+# create GNS3 user
+printf 'gns3\ngns3\n' | sudo adduser --gecos 'GNS3' gns3

packer/debian/scripts/post_setup.sh

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+sudo -- sh -c "
+# clear repository
+apt-get clean
+
+# clear unused space
+echo 'Clearing unused space...'
+dd if=/dev/zero bs=1M of=/zero >/dev/null 2>&1; rm -f /zero
+sync
+"

packer/debian/scripts/remove_cloud-init_network.sh

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+# replace cloud-init network configuration
+sudo -- sh -c "
+cat > /etc/network/interfaces <<'EOF'
+# This file describes the network interfaces available on your system
+# and how to activate them. For more information, see interfaces(5).
+
+source /etc/network/interfaces.d/*
+
+# The loopback network interface
+auto lo
+iface lo inet loopback
+
+# DHCP config for ens4
+#auto ens4
+#iface ens4 inet dhcp
+
+# Static config for ens4
+#auto ens4
+#iface ens4 inet static
+#	address 192.168.1.100
+#	netmask 255.255.255.0
+#	gateway 192.168.1.1
+#	dns-nameservers 192.168.1.1
+EOF
+rm -f /etc/network/interfaces.d/50-cloud-init
+"