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Update the EBS creation script

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This commit is contained in:
Eelco Dolstra 2013-01-24 18:11:17 +01:00
parent 001ddd1799
commit f3ec305c25
2 changed files with 20 additions and 23 deletions
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38
maintainers/scripts/ec2/create-ebs-amis.py
View File

@ -1,11 +1,12 @@
#! /usr/bin/env python
import os
import sys
from charon import deployment
from boto.ec2.blockdevicemapping import BlockDeviceMapping, BlockDeviceType
import charon.util
import time
import argparse
import charon.util
from charon import deployment
from boto.ec2.blockdevicemapping import BlockDeviceMapping, BlockDeviceType
parser = argparse.ArgumentParser(description='Create an EBS-backed NixOS AMI')
parser.add_argument('--region', dest='region', required=True, help='EC2 region')
@ -18,13 +19,14 @@ instance_type = "cc1.4xlarge" if args.hvm else "m1.small"
key_name = args.key_name
ebs_size = 8 if args.hvm else 20
# Start a NixOS machine in the given region.
f = open("ebs-creator-config.nix", "w")
f.write('''{{
machine =
f.write('''{{
machine =
{{ pkgs, ... }}:
{{
deployment.ec2.region = "{0}";
deployment.ec2.region = "{0}";
deployment.ec2.keyPair = pkgs.lib.mkOverride 10 "{1}";
deployment.ec2.blockDeviceMapping."/dev/xvdg".size = pkgs.lib.mkOverride 10 {2};
}};
@ -32,19 +34,20 @@ f.write('''{{
'''.format(args.region, key_name, ebs_size))
f.close()
db = deployment.open_database("./ebs-creator.charon")
db = deployment.open_database(deployment.get_default_state_file())
try:
depl = deployment.open_deployment(db, "ebs-creator")
except Exception:
depl = deployment.create_deployment(db)
depl.name = "ebs-creator"
depl.auto_response = "y"
depl.nix_exprs = ["./ebs-creator.nix", "./ebs-creator-config.nix"]
depl.nix_exprs = [os.path.abspath("./ebs-creator.nix"), os.path.abspath("./ebs-creator-config.nix")]
if not args.keep: depl.destroy_resources()
depl.deploy(allow_reboot=True)
m = depl.machines['machine']
# Do the installation.
device="/dev/xvdg"
if args.hvm:
@ -58,16 +61,8 @@ m.run_command("mkdir -p /mnt")
m.run_command("mount {0} /mnt".format(device))
m.run_command("touch /mnt/.ebs")
m.run_command("mkdir -p /mnt/etc/nixos")
# Kind of hacky until the nixos channel is updated to systemd
#m.run_command("nix-channel --add http://nixos.org/channels/nixos-unstable")
#m.run_command("nix-channel --update")
m.run_command("mkdir unpack")
m.run_command("cd unpack; (curl -L http://hydra.nixos.org/job/nixos/systemd/channel/latest/download | bzcat | tar xv)")
m.run_command("mkdir nixos")
m.run_command("mv unpack/*/* nixos")
m.run_command("mv nixos unpack/*")
m.run_command("nix-env -p /nix/var/nix/profiles/per-user/root/channels -i $(nix-store --add unpack/*)")
m.run_command("rm -fR unpack")
m.run_command("nix-channel --add http://nixos.org/channels/nixos-unstable")
m.run_command("nix-channel --update")
m.run_command("nixos-rebuild switch")
version = m.run_command("nixos-version", capture_stdout=True).replace('"', '').rstrip()
print >> sys.stderr, "NixOS version is {0}".format(version)
@ -89,7 +84,7 @@ if args.hvm:
else:
ami_name = "nixos-{0}-x86_64-ebs".format(version)
description = "NixOS {0} (x86_64; EBS root)".format(version)
# Wait for the snapshot to finish.
def check():
@ -161,6 +156,9 @@ image.set_launch_permissions(user_ids=[], group_names=["all"])
m._conn.create_tags([ami_id], {'Name': ami_name})
time.sleep(5)
# Do a test deployment to make sure that the AMI works.
f = open("ebs-test.nix", "w")
f.write(
@ -180,7 +178,7 @@ f.close()
test_depl = deployment.create_deployment(db)
test_depl.auto_response = "y"
test_depl.name = "ebs-creator-test"
test_depl.nix_exprs = [ "./ebs-test.nix" ]
test_depl.nix_exprs = [os.path.abspath("./ebs-test.nix")]
test_depl.deploy(create_only=True)
test_depl.machines['machine'].run_command("nixos-version")
if not args.keep:

5
maintainers/scripts/ec2/ebs-creator.nix
View File

@ -1,12 +1,11 @@
{
network.description = "NixOS EBS creator";
machine =
{ config, pkgs, ... }:
{ deployment.targetEnv = "ec2";
deployment.ec2.instanceType = "m1.small";
deployment.ec2.keyPair = "eelco";
deployment.ec2.securityGroups = [ "eelco-test" ];
deployment.ec2.securityGroups = [ "admin" ];
environment.systemPackages = [ pkgs.parted ];
fileSystems = [];
};