Helm range only getting last value – Nginx

Looks like the _deployment.yaml contains formatting and indentation issues. You need to fix those first. Also, follow the official debugging instructions to verify the rendered changes. For debugging, you may also use the print function.

Here’s a small example tested online and it works fine:

template.yaml

images:
{{- range $k, $v := .Values.images }}
- name: {{ $v.name }}_{{ $k }}
  image: {{ $v.repository }}
{{- end }}

values.yaml

images:
  image1:
    name: i1
    repository: r1
  image2:
    name: i2
    repository: r2

Output

images:
- name: i1_image1
  image: r1
- name: i2_image2
  image: r2

UPDATE

After reducing the updated config (as text) to bareminimum, it is working fine. See it online here.

template.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: name
spec:
  {{- if not .Values.autoscaling.enabled }}
  replicas: {{ .Values.deploymentReplicas }}
  {{- end }}
  minReadySeconds: {{ .Values.deployment.minReadySeconds | default 0 }}
  strategy: {}
  selector:
    matchLabels:
  template:
    metadata:
      labels:
    spec:
      {{- if .Values.gitlab.auth.enabled }}
      imagePullSecrets:
      {{- end }}
      serviceAccountName: {{ .Values.serviceAccount.name | quote }}
      securityContext:
        fsGroup: {{ .Values.deployment.runAsUser | default 1000 }}
        runAsUser: {{ .Values.deployment.runAsUser | default 1000 }}
        runAsNonRoot: {{ .Values.deployment.runAsNonRoot | default true }}
        affinity:
          podAntiAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
              - labelSelector:
                  matchExpressions:
                    - key: app
                      operator: In
                      values:
                topologyKey: "kubernetes.io/hostname"
        containers:
        {{- range $key, $value := .Values.images }}
        - name: {{ $value.name }}_{{ $key }}
          securityContext:
            runAsNonRoot: true
            runAsUser: 1200
          image: {{ $value.repository }}
          imagePullPolicy: ""
          ports:
            - containerPort: 8080
          resources: {{ toYaml $value.resources | nindent 10 }}
          readinessProbe:
            httpGet:
              path: /v1/healthCheck
              port: 8080
          initialDelaySeconds: ""
          periodSeconds: 10
        {{- end }}

values.yaml

images:
  image1:
    name: "hjdsh"
    repository: nginx
    pullPolicy: IfNotPresent
    tag: ""
    initialDelaySeconds: 5
    resources:
      requests:
        memory: "128Mi"
        cpu: "128m"
      limits:
        memory: "128Mi"
        cpu: "128m"
  image2:
    name: "kjbjk"
    repository: nginx
    pullPolicy: IfNotPresent
    tag: ""
    initialDelaySeconds: 5
    resources:
      requests:
        memory: "128Mi"
        cpu: "128m"
      limits:
        memory: "128Mi"
        cpu: "128m"

Output

apiVersion: apps/v1
kind: Deployment
metadata:
  name: name
spec:
  replicas: <no value>
  minReadySeconds: 0
  strategy: {}
  selector:
    matchLabels:
  template:
    metadata:
      labels:
    spec:
      serviceAccountName: 
      securityContext:
        fsGroup: 1000
        runAsUser: 1000
        runAsNonRoot: true
        affinity:
          podAntiAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
              - labelSelector:
                  matchExpressions:
                    - key: app
                      operator: In
                      values:
                topologyKey: "kubernetes.io/hostname"
        containers:
        - name: hjdsh_image1
          securityContext:
            runAsNonRoot: true
            runAsUser: 1200
          image: nginx
          imagePullPolicy: ""
          ports:
            - containerPort: 8080
          resources: 
          limits:
            cpu: 128m
            memory: 128Mi
          requests:
            cpu: 128m
            memory: 128Mi
          readinessProbe:
            httpGet:
              path: /v1/healthCheck
              port: 8080
          initialDelaySeconds: ""
          periodSeconds: 10
        - name: kjbjk_image2
          securityContext:
            runAsNonRoot: true
            runAsUser: 1200
          image: nginx
          imagePullPolicy: ""
          ports:
            - containerPort: 8080
          resources: 
          limits:
            cpu: 128m
            memory: 128Mi
          requests:
            cpu: 128m
            memory: 128Mi
          readinessProbe:
            httpGet:
              path: /v1/healthCheck
              port: 8080
          initialDelaySeconds: ""
          periodSeconds: 10

Your issue might be coming from someplace else. You need to debug the rest of the template and fix any intermediate issues that are causing this. As there are include also so it cannot be reproduced in entirety without them.