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I'm pulling up

Onlyyaml          bool   `yaml:"onlyyaml"`
	ConfigMountPath   string `yaml:"configmountpath"`
	Configdatamapname string `yaml:"configdatamapname"`
	Dapr struct {
		Enabled              bool   `yaml:"enabled"`
		AppID                string `yaml:"appid"`
		AppPort              int    `yaml:"appport"`
		EnableMetrics        bool   `yaml:"enablemetrics"`
		MetricsPort          int    `yaml:"metricsport"`
		SidecarCPULimit      string `yaml:"sidecarcpulimit"`
		SidecarCPURequest    string `yaml:"sidecarcpurequest"`
		SidecarMemoryLimit   string `yaml:"sidecarmemorylimit"`
		SidecarMemoryRequest string `yaml:"sidecarmemory-request"`
	} `yaml:"dapr"`
	Datadog struct {
		Enabled bool `yaml:"enabled"`
	} `yaml:"datadog"`
	Deployment  string `yaml:"deployment"`
	Environment string `yaml:"environment"`
	Image       struct {
		Pullpolicy string `yaml:"pullpolicy"`
		Repository string `yaml:"repository"`
		Tag        string `yaml:"tag"`
		Secretname string `yaml:"secretname"`
	} `yaml:"image"`
}

and i'm so confused 😭 after hours of debugging. In the example above say

Dapr

is loaded fine by

cfg.RequireObject("data", &configData)

However, despite Dapr struct loaded the nested values from pulumi config and the cli returning the

pulumi get config --path 'data.problemstruct

when loaded by pulumi it only pulls in 3 values and all the rest are empty. I have tried

inline

modifier and moved to it's own config path at the same level as

data

, and nothing changes. I never see the values populated at any stage despite the cli being able to load and my yaml mapping being correct (i believe). Any hints?

Use the json struct tag instead of yaml

I'm thinking it has to do with

RedisHost               string `yaml:"redis_host,omitempty"`

I want the yaml tag to be

redis_host

when I unmarshal and also later when I marshal back to a string. However, it seems to be unable to match that until I changed to

redisHost

.I have no idea why as I thought the tag was independent of the name.

Sorry I'm not at a computer so I can't paste in a code example.

I just tested and once I matched say

APIHost `yaml:"APIHost"`

You can have both json and yaml tags on the same property

yes ok, let me trim it down then, just a sec

Cool. What does the config itself look like?

I then take that later and create a yaml string as I mount it in the pod with a configmap

marshalledConfigVals, err := yaml.Marshal(appConfig)


	cfgMap, err = corev1.NewConfigMap(ctx, configData.ServiceConfigMapName(), &corev1.ConfigMapArgs{
		Metadata: &metav1.ObjectMetaArgs{
			Labels: configData.AppPulumiStringMap(),
		},
		Data:      pulumi.StringMap{configData.Configdatamapname: pulumi.String(string(marshalledConfigVals))},
		Immutable: pulumi.Bool(true),
	}, pulumi.Provider(prov))

So two things: 1. The portal prefix makes me think you should be config.New(ctx, “portal”) 2. I would try and change it from yaml: api_host to json: api_host in your struct tag. This is what has worked for me.

cool. i'll try. I couldn't find anything mentioning the namespace. The docs show load the data with "" so I'll try it.

Yeah this one was very surprising - I had the exact same issue as you. I found some example code that did this, so just laying it forward.

NICE. Thank you for this

I think internally Pulumi treats the config as json so this is why it's necessary.

I think a section on creating a configMap yaml file for mounting and mentioning the proper tag reading would be really important. I lost 3 days of app working, and a full day of trying to figure out what happened due to this. Be good to have a section in the Config page cover with admontion to ensure json tag is used even if yaml + when marshalling back. If there is a built in marshaller that would be good to mention too or provide in the pulumi examples repo. I basically had to create a configmap (you have nginx example for go and that's it in pulumi examples) and then generate a string yaml output so it created a mounted file rather than name value pairs.

I’m not quite sure what you mean about the ConfigMap

I need to generate a yaml file to mount NOT name/value pairs in config map.

Are you trying to generate a configmap or is the value for the configmap it’s own YAML blob?

So basically the normal things might be this with name value pairs

cfgMap, err = corev1.NewConfigMap(ctx, configData.ServiceConfigMapName(), &corev1.ConfigMapArgs{
		Metadata: &metav1.ObjectMetaArgs{
			Labels: configData.AppPulumiStringMap(),
		},
		Data:      pulumi.StringMap(appconfig), // <<<< Example. Whatever the type, I just pass in the stringmap.
		Immutable: pulumi.Bool(true),
	}, pulumi.Provider(prov))

instead I was asked to generate a yaml config that gets mounted into the container at a path, not env variables.

cfgMap, err = corev1.NewConfigMap(ctx, configData.ServiceConfigMapName(), &corev1.ConfigMapArgs{
		Metadata: &metav1.ObjectMetaArgs{
			Labels: configData.AppPulumiStringMap(),
		},
		Data:      pulumi.StringMap{"/config/config.yml": pulumi.String(string(marshalledConfigVals))}, <<< example string map, but the key = file path and the value = the yaml marshalled string
		Immutable: pulumi.Bool(true),
	}, pulumi.Provider(prov))

OK, I see.

I have AppConfig = unmarshal as is from pulumi config. Use this as is for the configmap generation. I want to be able to add a appconfig value to the json and it get to the configmap without effort, which is what I was doing that. Does that make sense in this use case?

It does.

Yes. Agree. I do try to avoid modification of a struct, but this is one of the cases of using pulumi config to set the values so exception. Makes sense though to keep things clean. Right now my pulumi code is a mess (first round with K8, still learning k8 too). Next step is cleanup of code and figuring if I can build some unit or integration tests possibly. Haven't seen a lot on that, so will be looking soon if I can make time!

On testing I have much less info 🙂