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fablo
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fablo
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#!/usr/bin/env bash
set -e
FABLO_VERSION=2.0.0
FABLO_IMAGE_NAME="ghcr.io/fablo-io/fablo"
FABLO_IMAGE="$FABLO_IMAGE_NAME:$FABLO_VERSION"
COMMAND="$1"
COMMAND_CALL_ROOT="$(pwd)"
FABLO_TARGET="$COMMAND_CALL_ROOT/fablo-target"
# Create temporary directory and remove it after script execution
FABLO_TEMP_DIR="$(mktemp -d -t fablo.XXXXXXXX)"
# shellcheck disable=SC2064
trap "rm -rf \"$FABLO_TEMP_DIR\"" EXIT
getDefaultFabloConfig() {
local fablo_config_json="$COMMAND_CALL_ROOT/fablo-config.json"
local fablo_config_yaml="$COMMAND_CALL_ROOT/fablo-config.yaml"
if [ -f "$fablo_config_json" ]; then
echo "$fablo_config_json"
elif [ -f "$fablo_config_yaml" ]; then
echo "$fablo_config_yaml"
else
echo "$fablo_config_json"
fi
}
getSnapshotPath() {
path="${1:-'snapshot'}"
if echo "$path" | grep -q "tar.gz$"; then
echo "$path"
else
echo "$path.fablo.tar.gz"
fi
}
printSplash() {
darkGray=$'\e[90m'
end=$'\e[0m'
echo ""
if [ "$(date +%m%d)" -gt "1215" ]; then
echo "┌────── * ┌─────. ╷ .────."
echo "│ _/_\_ │ │ │ ╱ ╲ "
echo "├───── _/___\_ ├─────: │ │ │"
echo "│ _/_____\_ │ │ │ ╲ ╱ "
printf "╵ |_| └─────' └────── '────' %24s\n" "v$FABLO_VERSION"
else
echo "┌────── .─. ┌─────. ╷ .────."
echo "│ / \ │ │ │ ╱ ╲ "
echo "├───── / \ ├─────: │ │ │"
echo "│ /───────\ │ │ │ ╲ ╱ "
printf "╵ / \ └─────' └────── '────' %24s\n" "v$FABLO_VERSION"
fi
echo "${darkGray}┌┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┐"
echo "│ https://fablo.io | created at SoftwareMill | backed by Hyperledger Foundation│"
echo "└┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┘${end}"
}
printHelp() {
printSplash
echo "Usage:
fablo init [node] [rest] [dev]
Creates simple Fablo config in current directory with optional Node.js, chaincode and REST API and dev mode.
fablo generate [/path/to/fablo-config.json|yaml [/path/to/fablo/target]]
Generates network configuration files in the given directory. Default config file path is '\$(pwd)/fablo-config.json' or '\$(pwd)/fablo-config.yaml', default (and recommended) directory '\$(pwd)/fablo-target'.
fablo up [/path/to/fablo-config.json|yaml]
Starts the Hyperledger Fabric network for given Fablo configuration file, creates channels, installs and instantiates chaincodes. If there is no configuration, it will call 'generate' command for given config file.
fablo <down | start | stop>
Downs, starts or stops the Hyperledger Fabric network for configuration in the current directory. This is similar to down, start and stop commands for Docker Compose.
fablo reset
Downs and ups the network. Network state is lost, but the configuration is kept intact.
fablo prune
Downs the network and removes all generated files.
fablo recreate [/path/to/fablo-config.json|yaml]
Prunes and ups the network. Default config file path is '\$(pwd)/fablo-config.json' or '\$(pwd)/fablo-config.yaml'.
fablo chaincodes install
Installs all chaincodes on relevant peers. Chaincode directory is specified in Fablo config file.
fablo chaincode install <chaincode-name> <version>
Installs chaincode on all relevant peers. Chaincode directory is specified in Fablo config file.
fablo chaincode upgrade <chaincode-name> <version>
Upgrades chaincode on all relevant peers. Chaincode directory is specified in Fablo config file.
fablo chaincode invoke <channel_name> <chaincode_name> <peers_domains_comma_separated> <command> <transient>
Invokes chaincode with specified parameters.
fablo chaincodes list <peer> <channel>
Lists chaincodes installed on specified peer and channel.
fablo channel --help
To list available channel query options which can be executed on running network.
fablo snapshot <target-snapshot-path>
Creates a snapshot of the network in target path. The snapshot contains all network state, including transactions and identities.
fablo restore <source-snapshot-path>
Restores the network from a snapshot.
fablo use [version]
Updates this Fablo script to specified version. Prints all versions if no version parameter is provided.
fablo <help | --help>
Prints the manual.
fablo version [--verbose | -v]
Prints current Fablo version, with optional details."
}
executeOnFabloDocker() {
local command_with_params="$1"
local fablo_workspace="${2:-$FABLO_TEMP_DIR}"
local fablo_config="$3"
local fablo_workspace_params=(
-v "$fablo_workspace":/network/workspace
)
local fablo_config_params=()
if [ -n "$fablo_config" ]; then
if [ ! -f "$fablo_config" ]; then
echo "File $fablo_config does not exist"
exit 1
fi
fablo_config="$(cd "$(dirname "$fablo_config")" && pwd)/$(basename "$fablo_config")"
local chaincodes_base_dir="$(dirname "$fablo_config")"
fablo_config_params=(
-v "$fablo_config":/network/fablo-config.json
--env "FABLO_CONFIG=$fablo_config"
--env "CHAINCODES_BASE_DIR=$chaincodes_base_dir"
)
fi
docker run -i --rm \
"${fablo_workspace_params[@]}" \
"${fablo_config_params[@]}" \
-u "$(id -u):$(id -g)" \
$FABLO_IMAGE sh -c "/fablo/docker-entrypoint.sh \"$command_with_params\"" \
2>&1
}
useVersion() {
printSplash
local version="$1"
if [ -n "$version" ]; then
echo "Updating '$0' to version $version..."
set +e
curl -Lf https://github.com/hyperledger-labs/fablo/releases/download/"$version"/fablo.sh -o "$0" && chmod +x "$0"
else
executeOnFabloDocker "fablo:list-versions"
fi
}
initConfig() {
printSplash
executeOnFabloDocker "fablo:init $1 $2"
cp -R -i "$FABLO_TEMP_DIR/." "$COMMAND_CALL_ROOT/"
}
validateConfig() {
local fablo_config=${1:-$(getDefaultFabloConfig)}
executeOnFabloDocker "fablo:validate" "" "$fablo_config"
}
extendConfig() {
local fablo_config=${1:-$(getDefaultFabloConfig)}
executeOnFabloDocker "fablo:extend-config" "" "$fablo_config"
}
generateNetworkConfig() {
printSplash
local fablo_config=${1:-$(getDefaultFabloConfig)}
local fablo_target=${2:-$FABLO_TARGET}
echo "Generating network config"
echo " FABLO_VERSION: $FABLO_VERSION"
echo " FABLO_CONFIG: $fablo_config"
echo " FABLO_NETWORK_ROOT: $fablo_target"
mkdir -p "$fablo_target"
executeOnFabloDocker "fablo:setup-network" "$fablo_target" "$fablo_config"
("$fablo_target/hooks/post-generate.sh")
}
networkPrune() {
if [ -f "$FABLO_TARGET/fabric-docker.sh" ]; then
"$FABLO_TARGET/fabric-docker.sh" down
fi
if [ -f "$FABLO_TARGET/fabric-k8s.sh" ]; then
"$FABLO_TARGET/fabric-k8s.sh" down
fi
echo "Removing $FABLO_TARGET"
rm -rf "$FABLO_TARGET"
}
networkUp() {
if [ ! -d "$FABLO_TARGET" ] || [ -z "$(ls -A "$FABLO_TARGET")" ]; then
echo "Network target directory is empty"
generateNetworkConfig "$1"
fi
executeFabloCommand up
}
executeFabloCommand() {
if [ ! -d "$FABLO_TARGET" ]; then
echo "Error: This command needs the network to be generated at '$FABLO_TARGET'! Execute 'generate' or 'up' command."
exit 1
fi
if [ -f "$FABLO_TARGET/fabric-docker.sh" ]; then
echo "Executing Fablo Docker command: $1"
"$FABLO_TARGET/fabric-docker.sh" "$1" "$2" "$3" "$4" "$5" "$6" "$7" "$8"
elif [ -f "$FABLO_TARGET/fabric-k8s.sh" ]; then
echo "Executing Fablo Kubernetes command: $1"
"$FABLO_TARGET/fabric-k8s.sh" "$1" "$2" "$3" "$4" "$5" "$6" "$7" "$8"
else
echo "Error: Corrupted Fablo target directory ($FABLO_TARGET)"
echo "Cannot execute command $1"
exit 1
fi
}
createSnapshot() {
archive="$(getSnapshotPath "$1")"
echo "Creating network snapshot in '$archive'"
if [ -f "$archive" ]; then
echo "Error: Snapshot file '$archive' already exists!"
exit 1
fi
executeFabloCommand snapshot "$FABLO_TEMP_DIR"
(cd "$FABLO_TEMP_DIR" && tar czf tmp.tar.gz *)
mv "$FABLO_TEMP_DIR/tmp.tar.gz" "$archive"
echo "📦 Created snapshot at '$archive'!"
}
restoreSnapshot() {
archive="$(getSnapshotPath "$1")"
hook_command="$2"
echo "📦 Restoring network from '$archive'"
if [ ! -f "$archive" ]; then
echo "Fablo snapshot file '$archive' does not exist!"
exit 1
fi
tar -xf "$archive" -C "$FABLO_TEMP_DIR"
"$FABLO_TEMP_DIR/fablo-target/fabric-docker.sh" clone-to "$COMMAND_CALL_ROOT" "$hook_command"
echo "📦 Network restored from '$archive'! Execute 'start' command to run it."
}
if [ -z "$COMMAND" ]; then
printHelp
exit 1
elif [ "$COMMAND" = "help" ] || [ "$COMMAND" = "--help" ]; then
printHelp
elif [ "$COMMAND" = "version" ]; then
executeOnFabloDocker "fablo:version $2"
elif [ "$COMMAND" = "use" ]; then
useVersion "$2"
elif [ "$COMMAND" = "init" ]; then
initConfig "$2" "$3"
elif [ "$COMMAND" = "validate" ]; then
validateConfig "$2"
elif [ "$COMMAND" = "extend-config" ]; then
extendConfig "$2"
elif [ "$COMMAND" = "generate" ]; then
generateNetworkConfig "$2" "$3"
elif [ "$COMMAND" = "up" ]; then
networkUp "$2"
elif [ "$COMMAND" = "prune" ]; then
networkPrune
elif [ "$COMMAND" = "recreate" ]; then
networkPrune
networkUp "$2"
elif [ "$COMMAND" = "snapshot" ]; then
createSnapshot "$2"
elif [ "$COMMAND" = "restore" ]; then
restoreSnapshot "$2" "${3:-""}"
else
executeFabloCommand "$COMMAND" "$2" "$3" "$4" "$5" "$6" "$7" "$8"
fi