puppet: Add aarch64 build hashes to external dependencies.

wal-g does not ship aarch64 binaries, currently; the compilation
process([1]) is somewhat complicated, so we defer the decision about
how to support wal-g for aarch64 until a later date.

[1]: https://github.com/wal-g/wal-g/blob/master/docs/PostgreSQL.md#installing

(cherry picked from commit c094867a74)

puppet/zulip/manifests/camo.pp

@@ -12,7 +12,7 @@ class zulip::camo (String $listen_address = '0.0.0.0') {
 
   zulip::external_dep { 'go-camo':
     version        => $version,
-    url            => "https://github.com/cactus/go-camo/releases/download/v${version}/go-camo-${version}.go1171.linux-amd64.tar.gz",
+    url            => "https://github.com/cactus/go-camo/releases/download/v${version}/go-camo-${version}.go1171.linux-${::architecture}.tar.gz",
     tarball_prefix => "go-camo-${version}",
   }
 

puppet/zulip/manifests/common.pp

@@ -39,6 +39,7 @@ class zulip::common {
       'version' => '2.3.0',
       'sha256' => {
         'amd64'   => '965506e6edb9d974c810519d71e847afb7ca69d1d01ae7d8be6d7a91de669c0c',
+        'aarch64' => '40463f6790eb0d2da69ad6a902fcc4c6b0c0ac24106a6c28fbfce9dfa4cb15cd',
       },
     },
 
@@ -47,6 +48,7 @@ class zulip::common {
       'version' => '1.17.3',
       'sha256' => {
         'amd64'   => '550f9845451c0c94be679faf116291e7807a8d78b43149f9506c1b15eb89008c',
+        'aarch64' => '06f505c8d27203f78706ad04e47050b49092f1b06dc9ac4fbee4f0e4d015c8d4',
       },
     },
 
@@ -62,6 +64,7 @@ class zulip::common {
       'version' => '1.1.1-rc',
       'sha256' => {
         'amd64' => 'eed4de63c2657add6e0fe70f8c0fbe62a4a54405b9bfc801b1912b6c4f2c7107',
+        # No aarch64 builds
       },
     },
   }

puppet/zulip/manifests/golang.pp

@@ -8,7 +8,7 @@ class zulip::golang {
 
   zulip::external_dep { 'golang':
     version        => $version,
-    url            => "https://golang.org/dl/go${version}.linux-amd64.tar.gz",
+    url            => "https://golang.org/dl/go${version}.linux-${::architecture}.tar.gz",
     tarball_prefix => 'go',
   }
 }