Fix for entrypoint with prysm hybrid mode

Author: jshufro

shared/services/config/rocket-pool-config.go

@@ -1383,6 +1383,14 @@ func (cfg *RocketPoolConfig) GetMevBoostOpenPorts() string {
 	return fmt.Sprintf("\"%s\"", portMode.DockerPortMapping(port))
 }
 
+// Used by text/template to select an entrypoint based on which consensus client is used.
+func (cfg *RocketPoolConfig) GetEth2Entrypoint() string {
+	if client, _ := cfg.GetSelectedConsensusClient(); client == config.ConsensusClient_Prysm {
+		return "bash"
+	}
+	return "sh"
+}
+
 // The title for the config
 func (cfg *RocketPoolConfig) GetConfigTitle() string {
 	return cfg.Title

shared/services/rocketpool/assets/install/templates/eth2.tmpl

@@ -94,11 +94,9 @@ services:
       - dac_override
     security_opt:
       - no-new-privileges
-    {{- if ne .ConsensusClient.String "prysm"}}
-    entrypoint: sh
-    {{- else}}
-    {{- /* prysm has bash but not sh and may need us to download genesis for testnets */}}
-    entrypoint: bash
+    entrypoint: {{ .GetEth2Entrypoint }}
+    {{- if eq .ConsensusClient.String "prysm"}}
+    {{- /* prysm may need us to download genesis for testnets */}}
     depends_on:
       eth2_genesis_downloader:
         condition: service_completed_successfully

shared/services/rocketpool/assets/install/templates/validator.tmpl

@@ -45,11 +45,7 @@ services:
       {{- if eq .ConsensusClient.String "teku"}}
       - TEKU_USE_SLASHING_PROTECTION={{.Teku.UseSlashingProtection}}
       {{- end}}
-    {{- if eq .ConsensusClient.String "prysm"}}
-    entrypoint: bash
-    {{- else}}
-    entrypoint: sh
-    {{- end}}
+    entrypoint: {{ .GetEth2Entrypoint }}
     command: "/setup/start-vc.sh"
     cap_drop:
       - all