5. Build everything from the source code

FogFlow can be build and installed on Linux for both ARM and X86 processors (32bits and 64bits).

5.1. Install dependencies

1. To build FogFlow, first install the following dependencies.

   • install git client: please follow the instruction at https://www.digitalocean.com/community/tutorials/how-to-install-git-on-ubuntu-16-04

   • install Docker CE: please follow the instruction at https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04

     Note

     all the scripts are prepared under the assumption that docker can be run without sudo.

   • install the latest version of golang(>v1.9): please download and install it according to the information at https://golang.org/doc/install

   • install nodejs(>6.11) and npm (>3.10): please download and install them according to the information at https://nodejs.org/en/download/

2. To check the installed version

   go version   #output  go version go1.9 linux/amd64
   nodejs -v    #output    v6.10.2
   npm -v       #output  3.10.10
   

3. To set the environment variable GOPATH

   Note

   GOPATH defines the workspace for go-based projects. Please note that the go workspace folder must have a “src” folder and the fogflow code repository must be cloned into this “src” folder. For example, assume that your home folder is “/home/smartfog” and then you create a new folder “go” as your workspace. In this case, you must create a “src” (must be exactly this name) under “/home/smartfog/go” first and then check out the FogFlow code repository within the “/home/smartfog/go/src” folder.

   export GOPATH="/home/smartfog/go"
   

4. To check out the code repository

   cd /home/smartfog/go/src/
   git clone https://github.com/smartfog/fogflow.git
   

5. To build all components from the source code as below

5.2. Build IoT Discovery

• to build the native executable program

  # go the discovery folder
  cd /home/smartfog/go/src/fogflow/discovery
  # download its third-party library dependencies
  go get
  # build the source code
  go build
  

• to build the docker image,

  # Simply ./build  can be run to perform the following commands
  
  # download its third-party library dependencies
  go get
  # build the source code and link all libraries statically
  CGO_ENABLED=0 go build -a
  # create the docker image; sudo might have to be used to run this command
  # if the docker user is not in the sudo group
  docker build -t "fogflow/discovery" .
  

5.3. Build IoT Broker

• to build the native executable program

  # go the broker folder
  cd /home/smartfog/go/src/fogflow/broker
  # download its third-party library dependencies
  go get
  # build the source code
  go build
  

• to build the docker image

  # simply ./build can be run to perform the following commands
  
  # download its third-party library dependencies
  go get
  # build the source code and link all libraries statically
  CGO_ENABLED=0 go build -a
  # create the docker image; sudo might have to be used to run this command
  # if the docker user is not in the sudo group
  docker build -t "fogflow/broker" .
  

5.4. Build Topology Master

• to build the native executable program

  # go the master folder
  cd /home/smartfog/go/src/fogflow/master
  # download its third-party library dependencies
  go get
  # build the source code
  go build
  

• to build the docker image

  # simply ./build can be run to perform the following commands
  
  # download its third-party library dependencies
  go get
  # build the source code and link all libraries statically
  CGO_ENABLED=0 go build -a
  # create the docker image; sudo might have to be used to run this command
  # if the docker user is not in the sudo group
  docker build -t "fogflow/master" .
  

5.5. Build Worker

• to build the native executable program

  # go the worker folder
  cd /home/smartfog/go/src/fogflow/worker
  # download its third-party library dependencies
  go get
  # build the source code
  go build
  

• to build the docker image

  # simply ./build  can be run to perform the following commands
  
  # download its third-party library dependencies
  go get
  # build the source code and link all libraries statically
  CGO_ENABLED=0 go build -a
  # create the docker image; sudo might have to be used to run this command
  # if the docker user is not in the sudo group
  docker build -t "fogflow/worker" .
  

5.6. Build Task Designer

• to install third-party library dependencies

  # go the designer folder
  cd /home/smartfog/go/src/fogflow/designer
  
  # install all required libraries
  npm install
  

• to build the docker image

  # simply ./build can be run to perform the following commands
  
  # install all required libraries
  npm install
  
  # create the docker image; sudo might have to be used to run this command
  # if the docker user is not in the sudo group
  docker build -t "fogflow/designer"  .