Flux2 migrations

migrate-automations.bash

#!/bin/bash

POSTFIX=${1:-"-dev"}
IMAGE_REGEX="^(?P<ts>[0-9]{4}\.[0-9]{2}\.[0-9]{2}\.[0-9]{2}\.[0-9]{2})_[a-f0-9]+${POSTFIX}\$"
IMAGE_EXTRACT='$ts'

for f in $(fd -g "**/*.yaml"); do
    AUTOMATED=$(cat $f | yq -r 'select(.metadata.annotations?["fluxcd.io/automated"]=="true") | .metadata.name+"^"+.metadata.namespace')
    for o in $AUTOMATED; do
      if [[ -n "$o" ]]; then
        NAME=$(echo $o | awk -F "^" '{print $1}')
        NAMESPACE=$(echo $o | awk -F "^" '{print $2}')
        IMAGEPOLICY="$(dirname $f)/${NAME}_imagepolicy.yaml"
        echo "Creating policy: $IMAGEPOLICY"
        flux create image policy "$NAME" -n "$NAMESPACE" --image-ref "$NAME" --select-alpha asc --filter-regex "$IMAGE_REGEX" --filter-extract "$IMAGE_EXTRACT" --export > "$IMAGEPOLICY"
      fi
    done
done

migrate-helmrepos.bash

echo 'apiVersion: source.toolkit.fluxcd.io/v1beta1\nkind: HelmRepository\nmetadata:\n  name: _NAME_\n  namespace: _NAMESPACE_\nspec:\n  interval: 1m\n  url: _URL_\n' > helmrepository.template.yaml
  && for i in $(rg HelmRelease -l); do
    cat $i | yq -r '.spec.chart.name+" "+.metadata.namespace+" "+.spec.chart.repository'
      | read N NS R && cat helmrepository.yaml.template
      | sed -e "s/_NAMESPACE_/$N/" -e "s/_NAME_/$NS/" -e "s,_URL_,$R,"
      > $(echo $i | sed "s/helmrelease/helmrepository/");
  done
  && rm helmrepository.template.yaml

migrate-images.bash

#!/bin/bash

for f in $(fd -g '**/*.yaml'); do
    IMAGES=$(cat $f | yq -r 'select(.kind|test("Deployment|DaemonSet|ReplicaSet|DaemonSet")) | .metadata.name as $n | .metadata.namespace as $ns | .spec.template.spec.containers[].image | $n+"^"+$ns+"^"+.')
    for i in $IMAGES; do
        echo "Image $i in file $f:"
        NAME=$(echo $i | awk -F "^" '{print $1}')
        NAMESPACE=$(echo $i | awk -F "^" '{print $2}')
        IMAGE=$(echo $i | awk -F "^" '{print $3}' | sed "s,^\(.*\):\([^/]*\)\$,\1 \2,")
        REPO=$(echo $IMAGE | awk '{print $1}')
        TAG=$(echo $IMAGE | awk '{print $2}')
        TAG=${TAG:-"latest"}
        IMAGEREPO="$(dirname $f)/${NAME}_imagerepository.yaml"
        echo "Creating file: $IMAGEREPO"
        flux create image repository "$NAME" --image "$REPO" --secret-ref regcred-backend -n "$NAMESPACE" --export > "$IMAGEREPO"
        sed -i "s,$(echo $TAG | sed "s,\([.]\),\\\\\1,g"),$TAG # {\"\$imagepolicy\": \"$NAMESPACE:$NAME\"}," $f
    done
done

migrate-images_cronjobs.bash

#!/bin/bash

for f in $(fd -g '**/*.yaml'); do
    IMAGES=$(cat $f | yq -r 'select(.kind|test("CronJob")) | .metadata.name as $n | .metadata.namespace as $ns | .spec.jobTemplate.spec.template.spec.containers[].image | $n+"^"+$ns+"^"+.')
    for i in $IMAGES; do
        echo "Image $i in file $f:"
        NAME=$(echo $i | awk -F "^" '{print $1}')
        NAMESPACE=$(echo $i | awk -F "^" '{print $2}')
        IMAGE=$(echo $i | awk -F "^" '{print $3}' | sed "s,^\(.*\):\([^/]*\)\$,\1 \2,")
        REPO=$(echo $IMAGE | awk '{print $1}')
        TAG=$(echo $IMAGE | awk '{print $2}')
        TAG=${TAG:-"latest"}
        IMAGEREPO="$(dirname $f)/${NAME}_imagerepository.yaml"
        echo "Creating file: $IMAGEREPO"
        flux create image repository "$NAME" --image "$REPO" --secret-ref regcred-backend -n "$NAMESPACE" --export > "$IMAGEREPO"
        sed -i "s,$(echo $TAG | sed "s,\([.]\),\\\\\1,g"),$TAG # {\"\$imagepolicy\": \"$NAMESPACE:$NAME\"}," $f
    done
done