chore(bors): merge pull request #479

479: fix(upgrade-job): use default value for missing values with helm 3.13 & 3.14 r=niladrih a=niladrih

The underlying logic would need to change going forward to get the exhaustive set of values, but so far we're not using any of the values facing the errors for comparison, so they may be set to their default value when deserialising the source helm chart values.


Ref: Helm issue 12936

Co-authored-by: Niladri Halder <niladri.halder26@gmail.com>

k8s/upgrade/src/bin/upgrade-job/helm/chart.rs

@@ -678,6 +678,7 @@ impl LokiStack {
 #[derive(Deserialize)]
 #[serde(rename_all(deserialize = "camelCase"))]
 struct Filebeat {
+    #[serde(default)]
     image_tag: String,
 }
 
@@ -692,6 +693,7 @@ impl Filebeat {
 #[derive(Deserialize)]
 #[serde(rename_all(deserialize = "camelCase"))]
 struct Grafana {
+    #[serde(default)]
     download_dashboards_image: GrafanaDownloadDashboardsImage,
     image: GenericImage,
     sidecar: GrafanaSidecar,
@@ -715,8 +717,9 @@ impl Grafana {
 }
 
 /// This is used to deserialize the YAML object 'loki-stack.grafana.downloadDashboardsImage'.
-#[derive(Deserialize)]
+#[derive(Default, Deserialize)]
 struct GrafanaDownloadDashboardsImage {
+    #[serde(default)]
     tag: String,
 }
 
@@ -730,6 +733,7 @@ impl GrafanaDownloadDashboardsImage {
 /// This is used to deserialize the YAML object 'loki-stack.grafana.sidecar'.
 #[derive(Deserialize)]
 struct GrafanaSidecar {
+    #[serde(default)]
     image: GenericImage,
 }
 
@@ -770,9 +774,13 @@ impl Loki {
 #[derive(Deserialize)]
 #[serde(rename_all(deserialize = "camelCase"))]
 struct Prometheus {
+    #[serde(default)]
     alertmanager: PrometheusAlertmanager,
+    #[serde(default)]
     node_exporter: PrometheusNodeExporter,
+    #[serde(default)]
     pushgateway: PrometheusPushgateway,
+    #[serde(default)]
     server: PrometheusServer,
 }
 
@@ -799,8 +807,9 @@ impl Prometheus {
 }
 
 /// This is used to deserialize the prometheus chart's alertmanager YAML object.
-#[derive(Deserialize)]
+#[derive(Default, Deserialize)]
 struct PrometheusAlertmanager {
+    #[serde(default)]
     image: GenericImage,
 }
 
@@ -811,8 +820,9 @@ impl PrometheusAlertmanager {
 }
 
 /// This is used to deserialize the prometheus chart's nodeExporter YAML object.
-#[derive(Deserialize)]
+#[derive(Default, Deserialize)]
 struct PrometheusNodeExporter {
+    #[serde(default)]
     image: GenericImage,
 }
 
@@ -823,8 +833,9 @@ impl PrometheusNodeExporter {
 }
 
 /// This is used to deserialize the prometheus chart's pushgateway YAML object.
-#[derive(Deserialize)]
+#[derive(Default, Deserialize)]
 struct PrometheusPushgateway {
+    #[serde(default)]
     image: GenericImage,
 }
 
@@ -835,8 +846,9 @@ impl PrometheusPushgateway {
 }
 
 /// This is used to deserialize the prometheus chart's server YAML object.
-#[derive(Deserialize)]
+#[derive(Default, Deserialize)]
 struct PrometheusServer {
+    #[serde(default)]
     image: GenericImage,
 }
 
@@ -1028,6 +1040,7 @@ impl LocalpvProvisionerLocalpv {
 /// chart.
 #[derive(Default, Deserialize)]
 struct GenericImage {
+    #[serde(default)]
     tag: String,
 }
 
@@ -1054,6 +1067,7 @@ impl LocalpvProvisionerHelperPod {
 /// This is used to deserialize the '.jaeger-operator' yaml object.
 #[derive(Deserialize)]
 struct JaegerOperator {
+    #[serde(default)]
     image: GenericImage,
 }