The sh command inside Nimbus and Lodestar VC template does not resolve variables

[sugh01]

🐞 Bug Report

Description

The InitContainer step needs to run a command -

init_container:
          - name: init-nimbus
            image: statusim/nimbus-eth2:$NIMBUS_VERSION
            command:
              - sh
              - -ac
              - "tmp=/data/nimbus/nimbus-keystores \n mkdir -p $${tmp}\n for f in /validator_keys/keystore-*.json; do\n  cp $${f} $${tmp}\n  cat $${f%.*}.txt | \\\n  /home/user/nimbus_beacon_node deposits import \\\n  --log-level=debug \\\n --data-dir=/data/nimbus \\\n  /data/nimbus/nimbus-keystores \n  rm $${tmp}/$(basename $${f}) \n done\n"
            volume_mount:
              - name: data
                mount_path: /data/nimbus
              - name: validators
                mount_path: /validator_keys
            security_context:
              run_as_user: 0

However, this does not succeed, the InitContainer crashes.

🔬 Minimal Reproduction

1. Set a kubectl namespace, can use a namespace with a running cluster - like canary-goerli-exit-3
2. Add a Nimbus VC to the .env file VC_TYPES=0,1,2,3 3=nimbus
3. Upload the file to gcp storage
4. Run deploy cluster

🔥 Error

The Nimbus VC pod crashes. User kubectl describe pod to check for the error inside the pod Notice that the variables inside the initContainer sh command, are not getting resolved

[aly-obol]

Story Points: 3 See the discussion in Sizing - Platform

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