portainer-to-dockhand-migration.sh

#!/bin/bash

###############################################
# CONFIGURATION
###############################################

PORTAINER_URL="https://portainer-host:40005"
PORTAINER_COMPOSE_DIR="/mnt/data/containers/portainer/compose"
DOCKHAND_STACK_DIR="/mnt/data/containers/dockhand/stacks/Env"

###############################################
# DRY RUN FLAG
###############################################

DRYRUN=false
if [[ "$1" == "--dry-run" ]]; then
    DRYRUN=true
    echo "[DRY RUN] No files will be copied or modified."
    echo
fi

###############################################
# AUTHENTICATION (interactive, no secrets saved)
###############################################

echo -n "Portainer Username: "
read USERNAME

echo -n "Portainer Password: "
read -s PASSWORD
echo

echo "Requesting JWT token from Portainer..."

JWT=$(curl -s -k \
  -X POST \
  -H "Content-Type: application/json" \
  -d "{\"username\": \"$USERNAME\", \"password\": \"$PASSWORD\"}" \
  "$PORTAINER_URL/api/auth" | jq -r '.jwt')

if [[ "$JWT" == "null" || -z "$JWT" ]]; then
    echo "ERROR: Failed to authenticate with Portainer."
    exit 1
fi

echo "Authentication successful."
echo

###############################################
# FETCH STACK MAP FROM PORTAINER API
###############################################

echo "Fetching stack list from Portainer..."

STACK_MAP=$(curl -s -k \
  -H "Authorization: Bearer $JWT" \
  "$PORTAINER_URL/api/stacks" \
  | jq -r '.[] | "\(.Id) \(.Name)"')

if [[ -z "$STACK_MAP" ]]; then
    echo "ERROR: No stacks returned from Portainer API."
    exit 1
fi

echo "Stack map retrieved:"
echo "$STACK_MAP"
echo

###############################################
# MIGRATION PROCESS
###############################################

echo "Starting migration to Dockhand..."
echo

while read -r ID NAME; do
    [[ -z "$ID" ]] && continue

    SRC="$PORTAINER_COMPOSE_DIR/$ID"
    DEST="$DOCKHAND_STACK_DIR/$NAME"

    if [[ ! -d "$SRC" ]]; then
        echo "Skipping $ID ($NAME): no such Portainer stack directory"
        continue
    fi

    # Find latest version directory (v1, v2, v3...)
    LATEST_VERSION=$(ls -1 "$SRC" | grep '^v' | sort -V | tail -n 1)
    SRC_VER="$SRC/$LATEST_VERSION"

    if [[ ! -d "$SRC_VER" ]]; then
        echo "Skipping $ID ($NAME): no version directories found"
        continue
    fi

    echo "Stack $ID → $NAME"
    echo "  Latest version: $LATEST_VERSION"
    echo "  Source: $SRC_VER"
    echo "  Destination: $DEST"

    if $DRYRUN; then
        echo "  [DRY RUN] Would create directory: $DEST"
        echo "  [DRY RUN] Would copy: docker-compose.yml → $DEST/"
        echo "  [DRY RUN] Would copy: stack.env → $DEST/"
        echo
        continue
    fi

    mkdir -p "$DEST"
    cp "$SRC_VER/docker-compose.yml" "$DEST/docker-compose.yml"
    cp "$SRC_VER/stack.env" "$DEST/stack.env"

    echo "  Copied successfully."
    echo

done <<< "$STACK_MAP"

if $DRYRUN; then
    echo "Dry run finished — no changes were made."
else
    echo "Migration complete."
    echo "Dockhand stacks are now located in: $DOCKHAND_STACK_DIR"
fi