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

puppet/zulip/manifests/common.pp

@@ -38,7 +38,8 @@ class zulip::common {
     'go-camo' => {
       'version' => '2.3.0',
       'sha256' => {
-        'amd64' => '965506e6edb9d974c810519d71e847afb7ca69d1d01ae7d8be6d7a91de669c0c',
+        'amd64'   => '965506e6edb9d974c810519d71e847afb7ca69d1d01ae7d8be6d7a91de669c0c',
+        'aarch64' => '40463f6790eb0d2da69ad6a902fcc4c6b0c0ac24106a6c28fbfce9dfa4cb15cd',
       },
     },
 
@@ -46,7 +47,8 @@ class zulip::common {
     'golang' => {
       'version' => '1.17.3',
       'sha256' => {
-        'amd64' => '550f9845451c0c94be679faf116291e7807a8d78b43149f9506c1b15eb89008c',
+        'amd64'   => '550f9845451c0c94be679faf116291e7807a8d78b43149f9506c1b15eb89008c',
+        'aarch64' => '06f505c8d27203f78706ad04e47050b49092f1b06dc9ac4fbee4f0e4d015c8d4',
       },
     },
 
@@ -62,6 +64,7 @@ class zulip::common {
       'version' => '1.1.1-rc',
       'sha256' => {
         'amd64' => 'eed4de63c2657add6e0fe70f8c0fbe62a4a54405b9bfc801b1912b6c4f2c7107',
+        # No aarch64 builds
       },
     },
 
@@ -72,7 +75,8 @@ class zulip::common {
     'grafana' => {
       'version' => '8.3.2',
       'sha256' => {
-        'amd64' => '100f92c50aa612f213052c55594e58b68b7da641b751c5f144003d704730d189',
+        'amd64'   => '100f92c50aa612f213052c55594e58b68b7da641b751c5f144003d704730d189',
+        'aarch64' => 'a948c49e45e1cdfba96dd885a8dd4585746520d64497bc59aeb6eb2dc46b5e22',
       },
     },
 
@@ -80,7 +84,8 @@ class zulip::common {
     'node_exporter' => {
       'version' => '8.3.2',
       'sha256' => {
-        'amd64' => '8c1f6a317457a658e0ae68ad710f6b4098db2cad10204649b51e3c043aa3e70d',
+        'amd64'   => '8c1f6a317457a658e0ae68ad710f6b4098db2cad10204649b51e3c043aa3e70d',
+        'aarch64' => 'eb5e7d16f18bb3272d0d832986fc8ac6cb0b6c42d487c94e15dabb10feae8e04',
       },
     },
 
@@ -88,7 +93,8 @@ class zulip::common {
     'prometheus' => {
       'version' => '2.27.1',
       'sha256' => {
-        'amd64' => 'ce637d0167d5e6d2561f3bd37e1c58fe8601e13e4e1ea745653c068f6e1317ae',
+        'amd64'   => 'ce637d0167d5e6d2561f3bd37e1c58fe8601e13e4e1ea745653c068f6e1317ae',
+        'aarch64' => 'a96fc1466d9030a9a899c783c087c30e91471342a771544d4e494ceead95cedc',
       },
     },
   }

puppet/zulip_ops/manifests/profile/grafana.pp

@@ -4,6 +4,10 @@ class zulip_ops::profile::grafana {
   include zulip_ops::profile::base
   include zulip::supervisor
 
+  $arch = $::architecture ? {
+    'amd64'   => 'amd64',
+    'aarch64' => 'arm64',
+  }
   $version = $zulip::common::versions['grafana']['version']
   $dir = "/srv/zulip-grafana-${version}"
   $bin = "${dir}/bin/grafana-server"
@@ -11,7 +15,7 @@ class zulip_ops::profile::grafana {
 
   zulip::external_dep { 'grafana':
     version        => $version,
-    url            => "https://dl.grafana.com/oss/release/grafana-${version}.linux-${::architecture}.tar.gz",
+    url            => "https://dl.grafana.com/oss/release/grafana-${version}.linux-${arch}.tar.gz",
     tarball_prefix => "grafana-${version}",
   }
 

puppet/zulip_ops/manifests/profile/prometheus_server.pp

@@ -6,6 +6,10 @@ class zulip_ops::profile::prometheus_server {
   include zulip_ops::profile::base
   include zulip_ops::prometheus::base
 
+  $arch = $::architecture ? {
+    'amd64'   => 'amd64',
+    'aarch64' => 'arm64',
+  }
   $version = $zulip::common::versions['prometheus']['version']
   $dir = "/srv/zulip-prometheus-${version}"
   $bin = "${dir}/prometheus"
@@ -13,8 +17,8 @@ class zulip_ops::profile::prometheus_server {
 
   zulip::external_dep { 'prometheus':
     version        => $version,
-    url            => "https://github.com/prometheus/prometheus/releases/download/v${version}/prometheus-${version}.linux-${::architecture}.tar.gz",
-    tarball_prefix => "prometheus-${version}.linux-${::architecture}",
+    url            => "https://github.com/prometheus/prometheus/releases/download/v${version}/prometheus-${version}.linux-${arch}.tar.gz",
+    tarball_prefix => "prometheus-${version}.linux-${arch}",
   }
   file { '/usr/local/bin/promtool':
     ensure  => 'link',

puppet/zulip_ops/manifests/prometheus/node.pp

@@ -4,14 +4,18 @@ class zulip_ops::prometheus::node {
   include zulip_ops::prometheus::base
   include zulip::supervisor
 
+  $arch = $::architecture ? {
+    'amd64'   => 'amd64',
+    'aarch64' => 'arm64',
+  }
   $version = $zulip::common::versions['node_exporter']['version']
   $dir = "/srv/zulip-node_exporter-${version}"
   $bin = "${dir}/node_exporter"
 
   zulip::external_dep { 'node_exporter':
     version        => $version,
-    url            => "https://github.com/prometheus/node_exporter/releases/download/v${version}/node_exporter-${version}.linux-${::architecture}.tar.gz",
-    tarball_prefix => "node_exporter-${version}.linux-${::architecture}",
+    url            => "https://github.com/prometheus/node_exporter/releases/download/v${version}/node_exporter-${version}.linux-${arch}.tar.gz",
+    tarball_prefix => "node_exporter-${version}.linux-${arch}",
   }
 
   # This was moved to an external_dep in 2021/12, and these lines can