pyrox.dev
1{ targetRoot, wgetExtraOptions }:
2
3# OpenStack's metadata service aims to be EC2-compatible. Where
4# possible, try to keep the set of fetched metadata in sync with
5# ./ec2-metadata-fetcher.nix .
6''
7 metaDir=${targetRoot}etc/ec2-metadata
8 mkdir -m 0755 -p "$metaDir"
9 rm -f "$metaDir/*"
10
11 echo "getting instance metadata..."
12
13 wget_imds() {
14 wget ${wgetExtraOptions} "$@"
15 }
16
17 wget_imds -O "$metaDir/ami-manifest-path" http://169.254.169.254/1.0/meta-data/ami-manifest-path || true
18 # When no user-data is provided, the OpenStack metadata server doesn't expose the user-data route.
19 (umask 077 && wget_imds -O "$metaDir/user-data" http://169.254.169.254/1.0/user-data || rm -f "$metaDir/user-data")
20 wget_imds -O "$metaDir/hostname" http://169.254.169.254/1.0/meta-data/hostname || true
21 wget_imds -O "$metaDir/public-keys-0-openssh-key" http://169.254.169.254/1.0/meta-data/public-keys/0/openssh-key || true
22''