Helm upgrade only the specific dependent chart

[anannaya]

I have umbrella chart
nkcscf/
├── charts
│   ├── coredisp-18.5.0-PI.2.IT.2-3.tgz
│   ├── gmdisp-18.5.0-PI.2.IT.2-3.tgz
│   ├── icscf-18.5.0-PI.2.IT.2-3.tgz
│   ├── mastericm-18.5.0-PI.2.IT.2-3.tgz
│   ├── pcscf-18.5.0-PI.2.IT.2-3.tgz
│   └── scscf-18.5.0-PI.2.IT.2-3.tgz
├── Chart.yaml
├── example-values.yaml
├── LICENSE
├── OWNERS
├── README.md
├── requirements.lock
├── requirements.yaml
├── templates
│   ├── _helpers.tpl
│   └── pvc.yaml
└── values.yaml

Part of values.yaml file.
{{
scscf:

required: true  
 global:
   scscf_image:
     name: scscf
     tag: NODB
icscf:
 required: true  
 global:
   icscf_image:
     name: icscf
     tag: NODB

I want to upgrade only one specific chart by changing the image. I have changed the image in values.yaml and tried $helm upgrade nkcscf nkcscf/ it didnt upgrade ? Is there way to upgrade the only the specific helm chart?

In each charts i have multiple containers, 1 container is common across all the dependent charts. Is there any way i can upgrade only the specific chart by with the latest common container image??

[anannaya]

Is this possible?

[bacongobbler]

If you upgraded an umbrella chart's dependency tree then called helm upgrade on the umbrella chart, that should work.

What was the value changed from, in this case? If there was no difference between version 1 and version 2, helm will think there's nothing to upgrade so something had to change for an upgrade to occur.

[anannaya]

@bacongobbler Thanks for the response.. My problem is
I have Umbrella chart Example CSCF which has a dependencies on scscf,icscf,pcscf microservices .. The s,i,p cscfs has multiple containers and they share a one common container.
For example : CSCF
-> scscf (mcc,scscf)
-> pcscf(mcc,pcscf)
-> icscf(mcc,icscf)
In case of upgrade I want to upgrade only one dependent chart like scscf with new mcc container image.

In values.yaml: I am using global variables

global:
    mcc_image:

scscf:
   scscf_image:
   user: scscf
pcscf:
  pcscf_image:
  user: pcscf
icscf:
  icscf_image:
  user: icscf

I want to upgrade the only scscf pod with new mcc_image without impacting the other dependent charts.
One solution would be :
-> move the mcc_image variable under all the dependent charts scope.. I dont want to do that.

Is there any other way?

[anannaya]

@bacongobbler This looks like #2076 ..