I'm trying to update a kubernetes template that we have so that I can pass in arguments such as --db-config <value> when my container starts up.
This is obviously not right b/c there's not getting picked up
...
containers:
- name: {{ .Chart.Name }}
...
args: ["--db-config", "/etc/app/cfg/db.yaml", "--tkn-config", "/etc/app/cfg/tkn.yaml"] <-- WHY IS THIS NOT WORKINGHere's an example showing your approach working:
main.go:
package main
import "flag"
import "fmt"
func main() {
db := flag.String("db-config", "default", "some flag")
tk := flag.String("tk-config", "default", "some flag")
flag.Parse()
fmt.Println("db-config:", *db)
fmt.Println("tk-config:", *tk)
}
Dockerfile [simplified]:
FROM scratch
ADD kube-flags /
ENTRYPOINT ["/kube-flags"]Test:
docker run kube-flags:180906
db-config: default
tk-config: default
docker run kube-flags:180906 --db-config=henry
db-config: henry
tk-config: default
pod.yaml:
apiVersion: v1
kind: Pod
metadata:
name: test
spec:
containers:
- image: gcr.io/.../kube-flags:180906
imagePullPolicy: Always
name: test
args:
- --db-config
- henry
- --tk-config
- turnip
test:
kubectl logs test
db-config: henry
tk-config: turnip