From 21339b41bf60847b0b8880b8ca5ceb2867044bf1 Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Wed, 18 Nov 2020 11:42:32 -0500
Subject: nixos: openstack: have its own metadata fetcher expression

These two APIs have diverged over time and are no longer compatible.
---
 nixos/modules/virtualisation/openstack-config.nix  |  2 +-
 .../virtualisation/openstack-metadata-fetcher.nix  | 23 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 nixos/modules/virtualisation/openstack-metadata-fetcher.nix

(limited to 'nixos')

diff --git a/nixos/modules/virtualisation/openstack-config.nix b/nixos/modules/virtualisation/openstack-config.nix
index c2da5d0d2301..d01e0f23aba1 100644
--- a/nixos/modules/virtualisation/openstack-config.nix
+++ b/nixos/modules/virtualisation/openstack-config.nix
@@ -3,7 +3,7 @@
 with lib;
 
 let
-  metadataFetcher = import ./ec2-metadata-fetcher.nix {
+  metadataFetcher = import ./openstack-metadata-fetcher.nix {
     targetRoot = "/";
     wgetExtraOptions = "--retry-connrefused";
   };
diff --git a/nixos/modules/virtualisation/openstack-metadata-fetcher.nix b/nixos/modules/virtualisation/openstack-metadata-fetcher.nix
new file mode 100644
index 000000000000..b531787c31a2
--- /dev/null
+++ b/nixos/modules/virtualisation/openstack-metadata-fetcher.nix
@@ -0,0 +1,23 @@
+{ targetRoot, wgetExtraOptions }:
+''
+  metaDir=${targetRoot}etc/ec2-metadata
+  mkdir -m 0755 -p "$metaDir"
+
+  echo "getting EC2 instance metadata..."
+
+  if ! [ -e "$metaDir/ami-manifest-path" ]; then
+    wget ${wgetExtraOptions} -O "$metaDir/ami-manifest-path" http://169.254.169.254/1.0/meta-data/ami-manifest-path
+  fi
+
+  if ! [ -e "$metaDir/user-data" ]; then
+    wget ${wgetExtraOptions} -O "$metaDir/user-data" http://169.254.169.254/1.0/user-data && chmod 600 "$metaDir/user-data"
+  fi
+
+  if ! [ -e "$metaDir/hostname" ]; then
+    wget ${wgetExtraOptions} -O "$metaDir/hostname" http://169.254.169.254/1.0/meta-data/hostname
+  fi
+
+  if ! [ -e "$metaDir/public-keys-0-openssh-key" ]; then
+    wget ${wgetExtraOptions} -O "$metaDir/public-keys-0-openssh-key" http://169.254.169.254/1.0/meta-data/public-keys/0/openssh-key
+  fi
+''
-- 
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