Redshift_Management.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Redshift management"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "> This Notebook will be used to launch the **redshift** cluster and to create an **IAM role** which will have access to _S3_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pandas as pd\n",
    "import boto3\n",
    "import json"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Param</th>\n",
       "      <th>Value</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>DB_CLUSTER_TYPE</td>\n",
       "      <td>multi-node</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>DB_NUM_NODES</td>\n",
       "      <td>4</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>DB_NODE_TYPE</td>\n",
       "      <td>dc2.large</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>DB_CLUSTER_IDENTIFIER</td>\n",
       "      <td>dbCluster</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>DB_NAME</td>\n",
       "      <td>dbr</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>DB_USER</td>\n",
       "      <td>dbuser</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>DB_PASSWORD</td>\n",
       "      <td>Passw0rd</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>DB_PORT</td>\n",
       "      <td>5439</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>DB_IAM_ROLE_NAME</td>\n",
       "      <td>dbRole</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                   Param       Value\n",
       "0        DB_CLUSTER_TYPE  multi-node\n",
       "1           DB_NUM_NODES           4\n",
       "2           DB_NODE_TYPE   dc2.large\n",
       "3  DB_CLUSTER_IDENTIFIER   dbCluster\n",
       "4                DB_NAME         dbr\n",
       "5                DB_USER      dbuser\n",
       "6            DB_PASSWORD    Passw0rd\n",
       "7                DB_PORT        5439\n",
       "8       DB_IAM_ROLE_NAME      dbRole"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import configparser\n",
    "config = configparser.ConfigParser()\n",
    "config.read_file(open('dwh.cfg'))\n",
    "\n",
    "KEY                    = # My access Key\n",
    "SECRET                 = # My secret access Key\n",
    "\n",
    "DB_CLUSTER_TYPE       = config.get(\"CLUSTER_CREATION\",\"DB_CLUSTER_TYPE\")\n",
    "DB_NUM_NODES          = config.get(\"CLUSTER_CREATION\",\"DB_NUM_NODES\")\n",
    "DB_NODE_TYPE          = config.get(\"CLUSTER_CREATION\",\"DB_NODE_TYPE\")\n",
    "\n",
    "DB_CLUSTER_IDENTIFIER = config.get(\"CLUSTER_CREATION\",\"DB_CLUSTER_IDENTIFIER\")\n",
    "DB_NAME               = config.get(\"CLUSTER\",\"DB_NAME\")\n",
    "DB_USER            = config.get(\"CLUSTER\",\"DB_USER\")\n",
    "DB_PASSWORD           = config.get(\"CLUSTER\",\"DB_PASSWORD\")\n",
    "DB_PORT               = config.get(\"CLUSTER\",\"DB_PORT\")\n",
    "\n",
    "DB_IAM_ROLE_NAME      = config.get(\"IAM_ROLE\", \"DB_IAM_ROLE_NAME\")\n",
    "\n",
    "# (DWH_DB_USER, DWH_DB_PASSWORD, DWH_DB)\n",
    "\n",
    "pd.DataFrame({\"Param\":\n",
    "                  [\"DB_CLUSTER_TYPE\", \"DB_NUM_NODES\", \"DB_NODE_TYPE\", \"DB_CLUSTER_IDENTIFIER\", \"DB_NAME\", \"DB_USER\", \"DB_PASSWORD\", \"DB_PORT\", \"DB_IAM_ROLE_NAME\"],\n",
    "              \"Value\":\n",
    "                  [DB_CLUSTER_TYPE, DB_NUM_NODES, DB_NODE_TYPE, DB_CLUSTER_IDENTIFIER, DB_NAME, DB_USER, DB_PASSWORD, DB_PORT, DB_IAM_ROLE_NAME]\n",
    "             })"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Clients for EC2, S3, IAM and Redshift"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "ec2 = boto3.resource('ec2',\n",
    "                       region_name=\"us-west-2\",\n",
    "                       aws_access_key_id=KEY,\n",
    "                       aws_secret_access_key=SECRET\n",
    "                    )\n",
    "\n",
    "s3 = boto3.resource('s3',\n",
    "                       region_name=\"us-west-2\",\n",
    "                       aws_access_key_id=KEY,\n",
    "                       aws_secret_access_key=SECRET\n",
    "                   )\n",
    "\n",
    "iam = boto3.client('iam',aws_access_key_id=KEY,\n",
    "                     aws_secret_access_key=SECRET,\n",
    "                     region_name='us-west-2'\n",
    "                  )\n",
    "\n",
    "redshift = boto3.client('redshift',\n",
    "                       region_name=\"us-west-2\",\n",
    "                       aws_access_key_id=KEY,\n",
    "                       aws_secret_access_key=SECRET\n",
    "                       )"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Creating IAM Role"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1.1 Creating a new IAM Role\n",
      "1.2 Attaching Policy\n",
      "1.3 Get the IAM role ARN\n",
      "arn:aws:iam::161423431008:role/dbRole\n"
     ]
    }
   ],
   "source": [
    "from botocore.exceptions import ClientError\n",
    "\n",
    "#1.1 Create the role, \n",
    "try:\n",
    "    print(\"1.1 Creating a new IAM Role\") \n",
    "    dwhRole = iam.create_role(\n",
    "        Path='/',\n",
    "        RoleName=DB_IAM_ROLE_NAME,\n",
    "        Description = \"Allows Redshift clusters to call AWS services.\",\n",
    "        AssumeRolePolicyDocument=json.dumps(\n",
    "            {'Statement': [{'Action': 'sts:AssumeRole',\n",
    "               'Effect': 'Allow',\n",
    "               'Principal': {'Service': 'redshift.amazonaws.com'}}],\n",
    "             'Version': '2012-10-17'})\n",
    "    )    \n",
    "except Exception as e:\n",
    "    print(e)\n",
    "    \n",
    "print(\"1.2 Attaching Policy\")\n",
    "\n",
    "iam.attach_role_policy(RoleName=DB_IAM_ROLE_NAME,\n",
    "                       PolicyArn=\"arn:aws:iam::aws:policy/AmazonS3ReadOnlyAccess\"\n",
    "                      )['ResponseMetadata']['HTTPStatusCode']\n",
    "\n",
    "print(\"1.3 Get the IAM role ARN\")\n",
    "roleArn = iam.get_role(RoleName=DB_IAM_ROLE_NAME)['Role']['Arn']\n",
    "\n",
    "print(roleArn)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Redshift Cluster"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "try:\n",
    "    response = redshift.create_cluster(        \n",
    "        #HW\n",
    "        ClusterType=DB_CLUSTER_TYPE,\n",
    "        NodeType=DB_NODE_TYPE,\n",
    "        NumberOfNodes=int(DB_NUM_NODES),\n",
    "\n",
    "        #Identifiers & Credentials\n",
    "        DBName=DB_NAME,\n",
    "        ClusterIdentifier=DB_CLUSTER_IDENTIFIER,\n",
    "        MasterUsername=DB_USER,\n",
    "        MasterUserPassword=DB_PASSWORD,\n",
    "        \n",
    "        #Roles (for s3 access)\n",
    "        IamRoles=[roleArn]\n",
    "        \n",
    "    )\n",
    "except Exception as e:\n",
    "    print(e)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Check cluster status"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
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       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Key</th>\n",
       "      <th>Value</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>ClusterIdentifier</td>\n",
       "      <td>dbcluster</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>NodeType</td>\n",
       "      <td>dc2.large</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>ClusterStatus</td>\n",
       "      <td>available</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>MasterUsername</td>\n",
       "      <td>dbuser</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>DBName</td>\n",
       "      <td>dbr</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>Endpoint</td>\n",
       "      <td>{'Address': 'dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com', 'Port': 5439}</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>VpcId</td>\n",
       "      <td>vpc-a2490fda</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>NumberOfNodes</td>\n",
       "      <td>4</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                 Key  \\\n",
       "0  ClusterIdentifier   \n",
       "1  NodeType            \n",
       "2  ClusterStatus       \n",
       "3  MasterUsername      \n",
       "4  DBName              \n",
       "5  Endpoint            \n",
       "6  VpcId               \n",
       "7  NumberOfNodes       \n",
       "\n",
       "                                                                                  Value  \n",
       "0  dbcluster                                                                             \n",
       "1  dc2.large                                                                             \n",
       "2  available                                                                             \n",
       "3  dbuser                                                                                \n",
       "4  dbr                                                                                   \n",
       "5  {'Address': 'dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com', 'Port': 5439}  \n",
       "6  vpc-a2490fda                                                                          \n",
       "7  4                                                                                     "
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def prettyRedshiftProps(props):\n",
    "    pd.set_option('display.max_colwidth', -1)\n",
    "    keysToShow = [\"ClusterIdentifier\", \"NodeType\", \"ClusterStatus\", \"MasterUsername\", \"DBName\", \"Endpoint\", \"NumberOfNodes\", 'VpcId']\n",
    "    x = [(k, v) for k,v in props.items() if k in keysToShow]\n",
    "    return pd.DataFrame(data=x, columns=[\"Key\", \"Value\"])\n",
    "\n",
    "myClusterProps = redshift.describe_clusters(ClusterIdentifier=DB_CLUSTER_IDENTIFIER)['Clusters'][0]\n",
    "prettyRedshiftProps(myClusterProps)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#### Endpoint and role ARN"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The Endpoint and the ARN will be used in the staging tables to copy the data from the S3 buckets"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "DWH_ENDPOINT ::  dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com\n",
      "DWH_ROLE_ARN ::  arn:aws:iam::161423431008:role/dbRole\n"
     ]
    }
   ],
   "source": [
    "DB_ENDPOINT = myClusterProps['Endpoint']['Address']\n",
    "DB_ROLE_ARN = myClusterProps['IamRoles'][0]['IamRoleArn']\n",
    "print(\"DWH_ENDPOINT :: \", DB_ENDPOINT)\n",
    "print(\"DWH_ROLE_ARN :: \", DB_ROLE_ARN)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Check Connection"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "%load_ext sql"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "postgresql://dbuser:Passw0rd@dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com:5439/dbr\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "'Connected: dbuser@dbr'"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "conn_string=\"postgresql://{}:{}@{}:{}/{}\".format(DB_USER, DB_PASSWORD, DB_ENDPOINT, DB_PORT, DB_NAME)\n",
    "print(conn_string)\n",
    "%sql $conn_string"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Delete Cluster"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'Cluster': {'ClusterIdentifier': 'dbcluster',\n",
       "  'NodeType': 'dc2.large',\n",
       "  'ClusterStatus': 'deleting',\n",
       "  'MasterUsername': 'dbuser',\n",
       "  'DBName': 'dbr',\n",
       "  'Endpoint': {'Address': 'dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com',\n",
       "   'Port': 5439},\n",
       "  'ClusterCreateTime': datetime.datetime(2020, 9, 30, 15, 23, 35, 208000, tzinfo=tzlocal()),\n",
       "  'AutomatedSnapshotRetentionPeriod': 1,\n",
       "  'ClusterSecurityGroups': [],\n",
       "  'VpcSecurityGroups': [{'VpcSecurityGroupId': 'sg-662a114d',\n",
       "    'Status': 'active'}],\n",
       "  'ClusterParameterGroups': [{'ParameterGroupName': 'default.redshift-1.0',\n",
       "    'ParameterApplyStatus': 'in-sync'}],\n",
       "  'ClusterSubnetGroupName': 'default',\n",
       "  'VpcId': 'vpc-a2490fda',\n",
       "  'AvailabilityZone': 'us-west-2d',\n",
       "  'PreferredMaintenanceWindow': 'wed:08:00-wed:08:30',\n",
       "  'PendingModifiedValues': {},\n",
       "  'ClusterVersion': '1.0',\n",
       "  'AllowVersionUpgrade': True,\n",
       "  'NumberOfNodes': 4,\n",
       "  'PubliclyAccessible': True,\n",
       "  'Encrypted': False,\n",
       "  'Tags': [],\n",
       "  'EnhancedVpcRouting': False,\n",
       "  'IamRoles': [{'IamRoleArn': 'arn:aws:iam::161423431008:role/dbRole',\n",
       "    'ApplyStatus': 'in-sync'}],\n",
       "  'MaintenanceTrackName': 'current'},\n",
       " 'ResponseMetadata': {'RequestId': 'bd13ecfe-25e5-4a3d-b445-c19edf74ae25',\n",
       "  'HTTPStatusCode': 200,\n",
       "  'HTTPHeaders': {'x-amzn-requestid': 'bd13ecfe-25e5-4a3d-b445-c19edf74ae25',\n",
       "   'content-type': 'text/xml',\n",
       "   'content-length': '2378',\n",
       "   'vary': 'accept-encoding',\n",
       "   'date': 'Wed, 30 Sep 2020 15:51:13 GMT'},\n",
       "  'RetryAttempts': 0}}"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "redshift.delete_cluster( ClusterIdentifier=DB_CLUSTER_IDENTIFIER,  SkipFinalClusterSnapshot=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
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       "\n",
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       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Key</th>\n",
       "      <th>Value</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>ClusterIdentifier</td>\n",
       "      <td>dbcluster</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>NodeType</td>\n",
       "      <td>dc2.large</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>ClusterStatus</td>\n",
       "      <td>deleting</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>MasterUsername</td>\n",
       "      <td>dbuser</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>DBName</td>\n",
       "      <td>dbr</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>Endpoint</td>\n",
       "      <td>{'Address': 'dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com', 'Port': 5439}</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>VpcId</td>\n",
       "      <td>vpc-a2490fda</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>NumberOfNodes</td>\n",
       "      <td>4</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                 Key  \\\n",
       "0  ClusterIdentifier   \n",
       "1  NodeType            \n",
       "2  ClusterStatus       \n",
       "3  MasterUsername      \n",
       "4  DBName              \n",
       "5  Endpoint            \n",
       "6  VpcId               \n",
       "7  NumberOfNodes       \n",
       "\n",
       "                                                                                  Value  \n",
       "0  dbcluster                                                                             \n",
       "1  dc2.large                                                                             \n",
       "2  deleting                                                                              \n",
       "3  dbuser                                                                                \n",
       "4  dbr                                                                                   \n",
       "5  {'Address': 'dbcluster.cdldcf4yytui.us-west-2.redshift.amazonaws.com', 'Port': 5439}  \n",
       "6  vpc-a2490fda                                                                          \n",
       "7  4                                                                                     "
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "myClusterProps = redshift.describe_clusters(ClusterIdentifier=DB_CLUSTER_IDENTIFIER)['Clusters'][0]\n",
    "prettyRedshiftProps(myClusterProps)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Delete Role"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'ResponseMetadata': {'RequestId': '5c18e291-1856-4cd5-9542-e165b0f4f411',\n",
       "  'HTTPStatusCode': 200,\n",
       "  'HTTPHeaders': {'x-amzn-requestid': '5c18e291-1856-4cd5-9542-e165b0f4f411',\n",
       "   'content-type': 'text/xml',\n",
       "   'content-length': '200',\n",
       "   'date': 'Wed, 30 Sep 2020 15:51:18 GMT'},\n",
       "  'RetryAttempts': 0}}"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "iam.detach_role_policy(RoleName=DB_IAM_ROLE_NAME, PolicyArn=\"arn:aws:iam::aws:policy/AmazonS3ReadOnlyAccess\")\n",
    "iam.delete_role(RoleName=DB_IAM_ROLE_NAME)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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