* Script for creating NixOS EBS-based AMIs.

svn path=/nixos/trunk/; revision=33765

maintainers/scripts/ec2/create-ebs-amis.py

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+#! /usr/bin/env python
+
+import sys
+from charon import deployment
+from boto.ec2.blockdevicemapping import BlockDeviceMapping, BlockDeviceType
+import charon.util
+
+depl = deployment.Deployment("./ebs-creator.json", create=True, nix_exprs=["./ebs-creator.nix"])
+depl.deploy()
+
+m = depl.machines['machine']
+
+# Do the installation.
+m.run_command("if mountpoint -q /mnt; then umount /mnt; fi")
+m.run_command("mkfs.ext4 -L nixos /dev/xvdg")
+m.run_command("mkdir -p /mnt")
+m.run_command("mount /dev/xvdg /mnt")
+m.run_command("touch /mnt/.ebs")
+m.run_command("mkdir -p /mnt/etc/nixos")
+m.run_command("cp /etc/nixos/configuration.nix /mnt/etc/nixos/") # FIXME
+m.run_command("nixos-checkout") # FIXME
+m.run_command("nixos-install")
+m.run_command("umount /mnt")
+
+# Create a snapshot.
+m.connect()
+volume = m._conn.get_all_volumes([], filters={'attachment.instance-id': m._instance_id, 'attachment.device': "/dev/sdg"})[0]
+snapshot = volume.create_snapshot(description="NixOS EBS root disk")
+#snapshot = m._conn.get_all_snapshots(["snap-f1c9679a"])[0]
+print >> sys.stderr, "created snapshot {0}".format(snapshot.id)
+
+# Wait for the snapshot to finish.
+def check():
+    status = snapshot.update()
+    print >> sys.stderr, "snapshot status is {0}".format(status)
+    return status == '100%'
+charon.util.check_wait(check, max_tries=120)
+
+# Register the image.
+aki = m._conn.get_all_images(filters={'manifest-location': '*pv-grub-hd0_1.03-x86_64*'})[0]
+print >> sys.stderr, "using kernel image %s - %s" %(aki.id, aki.location)
+
+block_map = BlockDeviceMapping()
+block_map['/dev/sda'] = BlockDeviceType(snapshot_id=snapshot.id, delete_on_termination=True)
+block_map['/dev/sdb'] = BlockDeviceType(ephemeral_name="ephemeral0")
+block_map['/dev/sdc'] = BlockDeviceType(ephemeral_name="ephemeral1")
+block_map['/dev/sdd'] = BlockDeviceType(ephemeral_name="ephemeral2")
+block_map['/dev/sde1'] = BlockDeviceType(ephemeral_name="ephemeral3")
+
+ami_id = m._conn.register_image(
+    name="nixos-x86-64-ebs-test-9", description="NixOS (x86_64) EBS test", architecture="x86_64",
+    root_device_name="/dev/sda", kernel_id=aki.id, block_device_map=block_map)
+
+print >> sys.stderr, "registered AMI {0}".format(ami_id)

maintainers/scripts/ec2/ebs-creator.nix

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+{
+  network.description = "NixOS EBS creator";
+  
+  machine =
+    { config, pkgs, ... }:
+    { deployment.targetEnv = "ec2";
+      deployment.ec2.region = "eu-west-1";
+      deployment.ec2.instanceType = "m1.small";
+      deployment.ec2.keyPair = "eelco";
+      deployment.ec2.securityGroups = [ "eelco-test" ];
+      deployment.ec2.blockDeviceMapping."/dev/xvdg".size = 20;
+    };
+}