Colo: Put NVMe disks to use (#6357)

automerge

net/common.sh

@@ -15,8 +15,9 @@ netConfigDir="$netDir"/config
 netLogDir="$netDir"/log
 mkdir -p "$netConfigDir" "$netLogDir"
 
+SOLANA_ROOT="$netDir"/..
 # shellcheck source=scripts/configure-metrics.sh
-source "$(dirname "${BASH_SOURCE[0]}")"/../scripts/configure-metrics.sh
+source "$SOLANA_ROOT"/scripts/configure-metrics.sh
 
 configFile="$netConfigDir/config"
 geoipConfigFile="$netConfigDir/geoip.yml"
@@ -94,3 +95,28 @@ urlencode() {
   done
 }
 
+SOLANA_CONFIG_DIR=$SOLANA_ROOT/config
+# Clear the current cluster configuration
+clear_config_dir() {
+  declare config_dir="$1"
+  (
+    set -x
+    rm -rf "${config_dir:?}/" # <-- $i might be a symlink, rm the other side of it first
+    rm -rf "$config_dir"
+    mkdir -p "$config_dir"
+  )
+
+  setup_secondary_mount
+}
+
+SECONDARY_DISK_MOUNT_POINT=/mnt/extra-disk
+setup_secondary_mount() {
+  # If there is a secondary disk, symlink the config/ dir there
+  if [[ -d $SECONDARY_DISK_MOUNT_POINT ]] && \
+    [[ -w $SECONDARY_DISK_MOUNT_POINT ]]; then
+    mkdir -p $SECONDARY_DISK_MOUNT_POINT/config
+    rm -rf "$SOLANA_CONFIG_DIR"
+    ln -sfT $SECONDARY_DISK_MOUNT_POINT/config "$SOLANA_CONFIG_DIR"
+  fi
+}
+