Update Server
sudo yum -y update
sudo yum -y install gcc make
Download Go binary
curl -LO https://storage.googleapis.com/golang/go1.7.3.linux-amd64.tar.gz
Although the tarball came from a genuine source, it is best practice to verify both the authenticity and integrity of items downloaded from the Internet. This verification method certifies that the file was neither tampered with nor corrupted or damaged during the download process. The sha256sum command produces a unique hash:
sha256sum go1.7*.tar.gz
OUTPUT
508028aac0654e993564b6e2014bf2d4a9751e3b286661b0b0040046cf18028e go1.7.3.linux-amd64.tar.gz
Compare the hash in your output to the checksum value on the Go download page. If they match, then it is safe to conclude that the download is legitimate.
Installation
sudo tar -C /usr/local -xvzf go1.7.3.linux-amd64.tar.gz
Note: The publisher officially recommends placing Go in the /usr/local directory. Installing it in another location does not impact its usability, but the custom path would need to be defined in the Go environment variable, GOROOT. The next step discusses working with environment variables.
Create bin, pkg and src directories in a workspace directory under your home directory
mkdir -p ~/go-projects/{bin,pkg,src}
The bin directory will contain executable programs compiled from the human-readable source files in the src directory.
The pkg directory stores package objects, which is reusable code shared between programs.
Setting Paths for Go
Create a path.sh script in the /etc/profile.d directory using the vi editor:
sudo vi /etc/profile.d/path.sh
export PATH=$PATH:/usr/local/go/bin
Additionally, define the GOPATH and GOBIN Go environment variables in your user’s .bash_profile file to point to the recently created workspace. The GOPATH variable tells Go the location of your source files, while the GOBIN variable instructs it where to create the compiled binary files.
Add the following to the end of the file, save and exit:
export GOBIN="$HOME/go-projects/bin"
export GOPATH="$HOME/go-projects/src"
Reload Updated Profiles
source /etc/profile && source ~/.bash_profile
You can check your path value using:
env | grep PATH
To test the installation with a simple program, check the last section of this gist.
Download and Extract Binary
cd /usr/local/src
sudo wget http://download.redis.io/releases/redis-3.2.0.tar.gz
sudo tar xzf redis-3.2.0.tar.gz
sudo rm -f 3.2.0.tar.gz
Install Redis
cd redis-3.2.0
sudo make distclean
sudo make
Install tcl to Test Redis Installation
sudo yum install -y tcl
sudo make test
Make Directories and Copy Files
sudo mkdir -p /etc/redis /var/lib/redis /var/redis/6379
sudo cp src/redis-server src/redis-cli /usr/local/bin
sudo cp redis.conf /etc/redis/6379.conf
Open Config File and Config Redis
sudo vim /etc/redis/6379.conf
bind 127.0.0.1 //line 61
daemonize yes //line 127
logfile "/var/log/redis_6379.log" //line 162
dir /var/redis/6379 //line 246
Download and install the init script
sudo wget https://raw.githubusercontent.com/saxenap/install-redis-amazon-linux-centos/master/redis-server
sudo mv redis-server /etc/init.d
sudo chmod 755 /etc/init.d/redis-server
Open the Redis server init script with vim
sudo vim /etc/init.d/redis-server
REDIS_CONF_FILE="/etc/redis/6379.conf" //line 26
Auto-enable and start the Redis server
sudo chkconfig --add redis-server
sudo chkconfig --level 345 redis-server on
sudo service redis-server start
Add the following lines to ensure background saves and fix low-memory issue. This is a new file.
sudo vim /etc/systctl.conf
# ensure redis background save issue
vm.overcommit_memory = 1
systctl vm.overcommit_memory=1
Test Redis Server
redis-cli ping
Response Should be PONG
Creating a Golang Program
To get started, create a new .go file:
vi ~/go-projects/src/hello.go
The code below uses the main Go package, imports the formatted IO content component, and sets a new function to print the string Hello, World!. Add the following to the file:
package main
import "fmt"
func main() {
fmt.Printf("Hello, World!\n")
}
Then, save and exit the file.
Next, compile the hello.go source file with the go install command:
go install $GOPATH/hello.go
We are now ready to run our program:
$GOBIN/hello
The hello.go program should produce a Hello, World! message, confirming a successful installation of Go.
Thanks! Feel free to comment for any queries or updates.