all-in-one/aws

AWS

• CLI
• Console SignIn
• EC2 vs Lambda comparison
  • EC2 : VM instance
    • always running
    • Pricing : CPU, memory, storage & runtime
    • use-case : high-performance application, long running
  • Lambda : Container
    • Run when event triggered
    • Pricing : based on running time
    • Max Mem : 3008MB
    • Max runtime : 900 sec
    • use-case :
      • automating task
      • realtime log
      • processing object upload to S3
• Storage
  • EBS - Elastic Block Storage
  • S3
• Messaging
  • SNS - Simple Notification Service
    • distributed Publish Subscribe system. push to subscriber
    • multiple receiver allowed
  • SQS - Simple Queue Service (Message Queue)
    • distributed queuing system. polling by receiver
    • single receiver
• VPC - Virtual Private Cloud

$ aws --version

$ aws configure

AWS Access Key ID [None]: ...
AWS Secret Access Key [None]: ...
Default region name [None]: ap-southeast-1
Default output format [None]:

$ aws configure list

      Name                    Value             Type    Location
      ----                    -----             ----    --------
   profile                <not set>             None    None
access_key     ****************7BMR shared-credentials-file
secret_key     ****************Ph2l shared-credentials-file
    region           ap-southeast-1      config-file    ~/.aws/config
    
    

• setting folder ~/.aws/credentials & ~/.aws/config

• Region Name

• SDK

$ aws help

$ aws ec2 help

$ aws ec2 describe-instances help

SSH

• login

  $ ssh -i sshprivatekey.pem ubuntu@ec2-3-0-55-149.ap-southeast-1.compute.amazonaws.com 
  

• copy

  $ scp -i $HOME/aws/netyth_razerpay.pem ./razerpay-schema-df.sql ubuntu@ec2-3-0-55-149.ap-southeast-1.compute.amazonaws.com:/home/ubuntu/xx.sql
  

• sql

  $ mysql --host=mysql.db.com --user=admin --password=12311
  $ mysql --host=razerpay.cx77tjbbiuga.ap-southeast-1.rds.amazonaws.com --user=admin --password=....
  
  // export databse schema to sql text
  $ mysqldump -u username -p database_to_backup > backup_name.sql
  

  mysql> CREATE DATABASE razerpay_singapore_prod;
  mysql> exit
  

  // import sql schema to database
  $ mysql -u admin -p razerpay_singapore_prod < file.sql
  

  mysql> SHOW DATABASES;
  mysql> USE DATABASE;
  mysql> SHOW TABLES;
  mysql> DESCRIBE <table>;    // display table schema
  
  mysql> SELECT user_id FROM df_receive_log;
  
  mysql> DROP DATABASE `db-name`;   // delete database. use backtick if name have dash
  
  mysql> exit
  
  mysql> SET GLOBAL log_bin_trust_function_creators = 1;
  

• PEM (Windows) file permission change

  # display file permission
  $ icacls <<pem file path>>
  
  # Remove the permissions inheritance
  $ icacls <<pem file path>> /inheritance:r /T
  # Grant read permission to the current user
  $ icacls <<pem file path>> /grant <<user name>>:R
  
  # updated permission display
  PS C:\dev\doc\ec2> icacls .\RPD-API.pem
  .\RPD-API.pem RAZER\tenghie.yik:(R)
  ###
  
  # ssh to aws ec2 using update pem file permission
  $ ssh -i "netyth-ec2-test.pem" ubuntu@ec2-54-169-180-189.ap-southeast-1.compute.amazonaws.com
  

• PEM (ubuntu) file permission change

  # change file permission
  $ chmod 400 <<pem file>>
  
  # ssh to aws ec2
  $ ssh -i "netyth-ec2-test.pem" ubuntu@ec2-54-169-180-189.ap-southeast-1.compute.amazonaws.com