feat!: add inline environments support

Signed-off-by: irizzant <[email protected]>

example/tk/inline/clusters.libsonnet

@@ -0,0 +1,26 @@
+[
+  {
+	// import the microservices example
+    local tempo = import '../tempo-microservices/main.jsonnet',
+
+    name: 'cluster name',
+    apiServer: 'https://0.0.0.0:6443',
+    namespace: 'namespace',
+
+    data: tempo,
+
+    dataOverride: {
+      _images+:: {
+        // images can be overridden here if desired
+      },
+
+      _config+:: {
+
+        // config can be overridden here if desired
+
+      },
+
+    },
+
+  },
+]

example/tk/inline/main.jsonnet

@@ -0,0 +1,29 @@
+local clusters = import 'clusters.libsonnet';
+local tanka = import 'github.com/grafana/jsonnet-libs/tanka-util/main.libsonnet';
+
+{
+  environment(cluster)::
+    tanka.environment.new(
+      name='grafana/' + cluster.name,
+      namespace=cluster.namespace,
+      apiserver=cluster.apiServer,
+    )
+    + tanka.environment.withLabels({ cluster: cluster.name })
+    + tanka.environment.withData( cluster.data {
+
+      _config+:: {
+        namespace: cluster.namespace,
+      },
+
+    } + cluster.dataOverride)
+    + {
+      spec+: {
+        injectLabels: true,
+      },
+    },
+
+  envs: {
+    [cluster.name]: $.environment(cluster)
+    for cluster in clusters
+  },
+}