feat: embed jp functions docs (cherry-pick #1980)

pkg/engine/functions/functions.go

@@ -27,7 +27,8 @@ func GetFunctions() []functions.FunctionEntry {
 		Arguments: []functions.ArgSpec{
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpEnv,
+		Handler:     jpEnv,
+		Description: "Returns the value of the environment variable passed in argument.",
 	}, {
 		Name: k8sGet,
 		Arguments: []functions.ArgSpec{
@@ -37,7 +38,8 @@ func GetFunctions() []functions.FunctionEntry {
 			{Types: []functions.JpType{functions.JpString}},
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpKubernetesGet,
+		Handler:     jpKubernetesGet,
+		Description: "Gets a resource from a Kubernetes cluster.",
 	}, {
 		Name: k8sList,
 		Arguments: []functions.ArgSpec{
@@ -46,7 +48,8 @@ func GetFunctions() []functions.FunctionEntry {
 			{Types: []functions.JpType{functions.JpString}},
 			{Types: []functions.JpType{functions.JpString}, Optional: true},
 		},
-		Handler: jpKubernetesList,
+		Handler:     jpKubernetesList,
+		Description: "Lists resources from a Kubernetes cluster.",
 	}, {
 		Name: k8sExists,
 		Arguments: []functions.ArgSpec{
@@ -56,33 +59,38 @@ func GetFunctions() []functions.FunctionEntry {
 			{Types: []functions.JpType{functions.JpString}},
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpKubernetesExists,
+		Handler:     jpKubernetesExists,
+		Description: "Checks if a given resource exists in a Kubernetes cluster.",
 	}, {
 		Name: k8sResourceExists,
 		Arguments: []functions.ArgSpec{
 			{Types: []functions.JpType{functions.JpAny}},
 			{Types: []functions.JpType{functions.JpString}},
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpKubernetesResourceExists,
+		Handler:     jpKubernetesResourceExists,
+		Description: "Checks if a given resource type is available in a Kubernetes cluster.",
 	}, {
 		Name: k8sServerVersion,
 		Arguments: []functions.ArgSpec{
 			{Types: []functions.JpType{functions.JpAny}},
 		},
-		Handler: jpKubernetesServerVersion,
+		Handler:     jpKubernetesServerVersion,
+		Description: "Returns the version of a Kubernetes cluster.",
 	}, {
 		Name: metricsDecode,
 		Arguments: []functions.ArgSpec{
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpMetricsDecode,
+		Handler:     jpMetricsDecode,
+		Description: "Decodes metrics in the Prometheus text format.",
 	}, {
 		Name: trimSpace,
 		Arguments: []functions.ArgSpec{
 			{Types: []functions.JpType{functions.JpString}},
 		},
-		Handler: jpTrimSpace,
+		Handler:     jpTrimSpace,
+		Description: "Trims leading and trailing spaces from the string passed in argument.",
 	}, {
 		Name: asString,
 		Arguments: []functions.ArgSpec{
@@ -103,5 +111,6 @@ func GetFunctions() []functions.FunctionEntry {
 			}
 			return nil, nil
 		},
+		Description: "Returns the passed in argument converted into a string.",
 	}}
 }

website/docs/reference/jp/examples/as_string.md

@@ -6,8 +6,10 @@
 
 ## Description
 
-
+Returns the passed in argument converted into a string.
 
 ## Examples
 
-TODO
+```
+as_string('foobar') == 'foobar'
+```

website/docs/reference/jp/examples/env.md

@@ -6,8 +6,10 @@
 
 ## Description
 
-
+Returns the value of the environment variable passed in argument.
 
 ## Examples
 
-TODO
+```
+env('MY_ENV_VAR') == 'foo'
+```

website/docs/reference/jp/examples/trim_space.md

@@ -6,8 +6,10 @@
 
 ## Description
 
-
+Trims leading and trailing spaces from the string passed in argument.
 
 ## Examples
 
-TODO
+```
+trim_space('    foobar  ') == 'foobar'
+```

website/docs/reference/jp/examples/x_k8s_exists.md

@@ -6,8 +6,16 @@
 
 ## Description
 
-
+Checks if a given resource exists in a Kubernetes cluster.
 
 ## Examples
 
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_exists($client, 'apps/v1', 'Deployment', 'crossplane-system', 'crossplane')
+```

website/docs/reference/jp/examples/x_k8s_get.md

@@ -6,8 +6,16 @@
 
 ## Description
 
-
+Gets a resource from a Kubernetes cluster.
 
 ## Examples
 
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_get($client, 'apps/v1', 'Deployment', 'crossplane-system', 'crossplane')
+```

website/docs/reference/jp/examples/x_k8s_list.md

@@ -6,8 +6,16 @@
 
 ## Description
 
-
+Lists resources from a Kubernetes cluster.
 
 ## Examples
 
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_list($client, 'apps/v1', 'Deployment', 'crossplane-system')
+```

website/docs/reference/jp/examples/x_k8s_resource_exists.md

@@ -6,8 +6,16 @@
 
 ## Description
 
-
+Checks if a given resource type is available in a Kubernetes cluster.
 
 ## Examples
 
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_resource_exists($client, 'apps/v1', 'Deployment')
+```

website/docs/reference/jp/examples/x_k8s_server_version.md

@@ -6,8 +6,12 @@
 
 ## Description
 
-
+Returns the version of a Kubernetes cluster.
 
 ## Examples
 
-TODO
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_server_version($client)
+```

website/docs/reference/jp/examples/x_metrics_decode.md

@@ -6,7 +6,7 @@
 
 ## Description
 
-
+Decodes metrics in the Prometheus text format.
 
 ## Examples
 

website/docs/reference/jp/functions.md

@@ -116,13 +116,13 @@
 
 | Name | Signature | Description |
 |---|---|---|
-| [env](./examples/env.md) | `env(string)` |  |
-| [x_k8s_get](./examples/x_k8s_get.md) | `x_k8s_get(any, string, string, string, string)` |  |
-| [x_k8s_list](./examples/x_k8s_list.md) | `x_k8s_list(any, string, string, string)` |  |
-| [x_k8s_exists](./examples/x_k8s_exists.md) | `x_k8s_exists(any, string, string, string, string)` |  |
-| [x_k8s_resource_exists](./examples/x_k8s_resource_exists.md) | `x_k8s_resource_exists(any, string, string)` |  |
-| [x_k8s_server_version](./examples/x_k8s_server_version.md) | `x_k8s_server_version(any)` |  |
-| [x_metrics_decode](./examples/x_metrics_decode.md) | `x_metrics_decode(string)` |  |
-| [trim_space](./examples/trim_space.md) | `trim_space(string)` |  |
-| [as_string](./examples/as_string.md) | `as_string(any)` |  |
+| [env](./examples/env.md) | `env(string)` | Returns the value of the environment variable passed in argument. |
+| [x_k8s_get](./examples/x_k8s_get.md) | `x_k8s_get(any, string, string, string, string)` | Gets a resource from a Kubernetes cluster. |
+| [x_k8s_list](./examples/x_k8s_list.md) | `x_k8s_list(any, string, string, string)` | Lists resources from a Kubernetes cluster. |
+| [x_k8s_exists](./examples/x_k8s_exists.md) | `x_k8s_exists(any, string, string, string, string)` | Checks if a given resource exists in a Kubernetes cluster. |
+| [x_k8s_resource_exists](./examples/x_k8s_resource_exists.md) | `x_k8s_resource_exists(any, string, string)` | Checks if a given resource type is available in a Kubernetes cluster. |
+| [x_k8s_server_version](./examples/x_k8s_server_version.md) | `x_k8s_server_version(any)` | Returns the version of a Kubernetes cluster. |
+| [x_metrics_decode](./examples/x_metrics_decode.md) | `x_metrics_decode(string)` | Decodes metrics in the Prometheus text format. |
+| [trim_space](./examples/trim_space.md) | `trim_space(string)` | Trims leading and trailing spaces from the string passed in argument. |
+| [as_string](./examples/as_string.md) | `as_string(any)` | Returns the passed in argument converted into a string. |
 

website/jp/examples/as_string.md

@@ -1 +1,3 @@
-TODO
+```
+as_string('foobar') == 'foobar'
+```

website/jp/examples/env.md

@@ -1 +1,3 @@
-TODO
+```
+env('MY_ENV_VAR') == 'foo'
+```

website/jp/examples/trim_space.md

@@ -1 +1,3 @@
-TODO
+```
+trim_space('    foobar  ') == 'foobar'
+```

website/jp/examples/x_k8s_exists.md

@@ -1 +1,9 @@
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_exists($client, 'apps/v1', 'Deployment', 'crossplane-system', 'crossplane')
+```

website/jp/examples/x_k8s_get.md

@@ -1 +1,9 @@
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_get($client, 'apps/v1', 'Deployment', 'crossplane-system', 'crossplane')
+```

website/jp/examples/x_k8s_list.md

@@ -1 +1,9 @@
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_list($client, 'apps/v1', 'Deployment', 'crossplane-system')
+```

website/jp/examples/x_k8s_resource_exists.md

@@ -1 +1,9 @@
-TODO
+!!! info "Clustered resources"
+
+    For clustered resources, you can leave the namespace empty `''`.
+
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_resource_exists($client, 'apps/v1', 'Deployment')
+```

website/jp/examples/x_k8s_server_version.md

@@ -1 +1,5 @@
-TODO
+```
+# `$client` is a binding pointing to a Kubernetes client
+
+x_k8s_server_version($client)
+```