Updating IngressClassName in Values

For each <project>/qualif/values.yaml, ensure the result contains:

YAML
ingresses:
  ingressClassName: traefik

Do this with yq (eval in-place, -i), never manual text editing — it preserves YAML structure and comments better and avoids indentation mistakes.

Detect OS first:

• Windows → binary is yq.exe
• Linux/Mac → binary is yq

Bash
# Linux/Mac example for one file
yq -i '.ingresses.ingressClassName = "traefik"' path/to/qualif/values.yaml

This single yq expression handles all three cases described below because yq's = assignment creates missing keys (ingresses, then ingressClassName) and overwrites existing scalar values — no need for separate branches in yq itself. Still, verify per-file logic explicitly (see Workflow) so you can log what changed.

Progress:

• Step 1: Detect OS, pick yq binary (yq vs yq.exe)
• Step 2: Find all */qualif/values.yaml files under project root
• Step 3: For each file, inspect current state of ingresses / ingressClassName
• Step 4: Apply the correct fix (add block / add key / fix value)
• Step 5: Validate result and log a summary per file

Step 1 — Pick the binary

Bash
if [[ "$OSTYPE" == "msys" || "$OS" == "Windows_NT" ]]; then
  YQ=yq.exe
else
  YQ=yq
fi

Step 2 — Enumerate target files

Bash
find . -type d -name qualif -exec test -f {}/values.yaml \; -print
# or directly build file list:
find . -path "*/qualif/values.yaml"

Step 3 — Inspect before modifying (for correct logging / decision)

Bash
$YQ e '.ingresses' file.yaml        # null if missing
$YQ e '.ingresses.ingressClassName' file.yaml  # null if missing key

Three cases:

1. No ingresses key at all → add the whole block:

   Bash
   $YQ -i '.ingresses.ingressClassName = "traefik"' file.yaml

2. ingresses exists but no ingressClassName → add key under existing block (same command works, yq merges into existing map without clobbering sibling keys):

   Bash
   $YQ -i '.ingresses.ingressClassName = "traefik"' file.yaml

3. ingresses.ingressClassName exists but wrong value (e.g. nginx) → overwrite:

   Bash
   $YQ -i '.ingresses.ingressClassName = "traefik"' file.yaml

All three cases reduce to the same idempotent yq command — this is the key insight, use it as the single implementation, but keep the pre-check (Step 3) to report what was changed vs already-correct.

Step 4 — Apply and log

Bash
for f in $(find . -path "*/qualif/values.yaml"); do
  before=$($YQ e '.ingresses.ingressClassName' "$f")
  $YQ -i '.ingresses.ingressClassName = "traefik"' "$f"
  after=$($YQ e '.ingresses.ingressClassName' "$f")
  echo "$f: before=[$before] after=[$after]"
done

Step 5 — Validate

Bash
$YQ e '.ingresses.ingressClassName' file.yaml   # must print: traefik

Optionally validate the whole file still parses:

Bash
$YQ e '.' file.yaml > /dev/null || echo "INVALID YAML: $file"

Example 1 — key missing entirely Input (values.yaml):

YAML
replicaCount: 2
image:
  repository: myapp

Output:

YAML
replicaCount: 2
image:
  repository: myapp
ingresses:
  ingressClassName: traefik

Example 2 — ingresses present, ingressClassName missing Input:

YAML
ingresses:
  enabled: true
  host: myapp.example.com

Output:

YAML
ingresses:
  enabled: true
  host: myapp.example.com
  ingressClassName: traefik

Example 3 — wrong value present Input:

YAML
ingresses:
  ingressClassName: nginx

Output:

YAML
ingresses:
  ingressClassName: traefik