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authorJack Kelly <jack@jackkelly.name>2020-11-21 11:40:38 +1000
committerJack Kelly <jack@jackkelly.name>2020-11-22 11:04:46 +1000
commit8c39655de3f0ae5adbbfb3b9c5be412c4c3801d6 (patch)
tree716f977b8c4503000afb0c59d9bcc690d9e26809
parentf8c3027812718db56b0cbdad137881f44bc1264a (diff)
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{ec2,openstack}-metadata-fetcher: introduce wget_imds function
-rw-r--r--nixos/modules/virtualisation/ec2-metadata-fetcher.nix12
-rw-r--r--nixos/modules/virtualisation/openstack-metadata-fetcher.nix12
2 files changed, 16 insertions, 8 deletions
diff --git a/nixos/modules/virtualisation/ec2-metadata-fetcher.nix b/nixos/modules/virtualisation/ec2-metadata-fetcher.nix
index 812e93ec4aa..0b110d375a4 100644
--- a/nixos/modules/virtualisation/ec2-metadata-fetcher.nix
+++ b/nixos/modules/virtualisation/ec2-metadata-fetcher.nix
@@ -61,19 +61,23 @@
 
   echo "getting EC2 instance metadata..."
 
+  wget_imds() {
+    wget ${wgetExtraOptions} --header "X-aws-ec2-metadata-token: $IMDS_TOKEN" "$@";
+  }
+
   if ! [ -e "$metaDir/ami-manifest-path" ]; then
-    wget ${wgetExtraOptions} --header "X-aws-ec2-metadata-token: $IMDS_TOKEN" -O "$metaDir/ami-manifest-path" http://169.254.169.254/1.0/meta-data/ami-manifest-path
+    wget_imds -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} --header "X-aws-ec2-metadata-token: $IMDS_TOKEN" -O "$metaDir/user-data" http://169.254.169.254/1.0/user-data && chmod 600 "$metaDir/user-data"
+    wget_imds -O "$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} --header "X-aws-ec2-metadata-token: $IMDS_TOKEN" -O "$metaDir/hostname" http://169.254.169.254/1.0/meta-data/hostname
+    wget_imds -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} --header "X-aws-ec2-metadata-token: $IMDS_TOKEN" -O "$metaDir/public-keys-0-openssh-key" http://169.254.169.254/1.0/meta-data/public-keys/0/openssh-key
+    wget_imds -O "$metaDir/public-keys-0-openssh-key" http://169.254.169.254/1.0/meta-data/public-keys/0/openssh-key
   fi
 ''
diff --git a/nixos/modules/virtualisation/openstack-metadata-fetcher.nix b/nixos/modules/virtualisation/openstack-metadata-fetcher.nix
index b8f78efb98a..2aff8ccd2c2 100644
--- a/nixos/modules/virtualisation/openstack-metadata-fetcher.nix
+++ b/nixos/modules/virtualisation/openstack-metadata-fetcher.nix
@@ -5,19 +5,23 @@
 
   echo "getting instance metadata..."
 
+  wget_imds() {
+    wget ${wgetExtraOptions} "$@"
+  }
+
   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
+    wget_imds -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 "$metaDir/user-data"
+    wget_imds -O "$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
+    wget_imds -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
+    wget_imds -O "$metaDir/public-keys-0-openssh-key" http://169.254.169.254/1.0/meta-data/public-keys/0/openssh-key
   fi
 ''