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aws.py
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aws.py
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import base64
import boto3
import logging
import os
import rsa
import time
from boto3.exceptions import Boto3Error
from botocore.exceptions import ClientError
from .cloud_provider import CloudProviderBase
from .node import Node
logging.getLogger('boto3').setLevel(logging.CRITICAL)
logging.getLogger('botocore').setLevel(logging.CRITICAL)
AWS_REGION = os.environ.get("AWS_REGION", "us-east-2")
AWS_REGION_AZ = os.environ.get("AWS_REGION_AZ", "us-east-2a")
AWS_SECURITY_GROUP = os.environ.get("AWS_SECURITY_GROUPS",
'sg-0e753fd5550206e55')
AWS_SUBNET = os.environ.get("AWS_SUBNET", "subnet-ee8cac86")
AWS_HOSTED_ZONE_ID = os.environ.get("AWS_HOSTED_ZONE_ID", "")
AWS_VPC_ID = os.environ.get("AWS_VPC_ID", "vpc-bfccf4d7")
AWS_ACCESS_KEY_ID = os.environ.get("AWS_ACCESS_KEY_ID")
AWS_SECRET_ACCESS_KEY = os.environ.get("AWS_SECRET_ACCESS_KEY")
AWS_SSH_KEY_NAME = os.environ.get("AWS_SSH_KEY_NAME")
AWS_CICD_INSTANCE_TAG = os.environ.get("AWS_CICD_INSTANCE_TAG",
'rancher-validation')
AWS_IAM_PROFILE = os.environ.get("AWS_IAM_PROFILE", "")
# by default the public Ubuntu 18.04 AMI is used
AWS_DEFAULT_AMI = "ami-0d5d9d301c853a04a"
AWS_DEFAULT_USER = "ubuntu"
AWS_AMI = os.environ.get("AWS_AMI", AWS_DEFAULT_AMI)
AWS_USER = os.environ.get("AWS_USER", AWS_DEFAULT_USER)
AWS_VOLUME_SIZE = os.environ.get("AWS_VOLUME_SIZE", "50")
AWS_INSTANCE_TYPE = os.environ.get("AWS_INSTANCE_TYPE", 't3a.medium')
AWS_WINDOWS_VOLUME_SIZE = os.environ.get("AWS_WINDOWS_VOLUME_SIZE", "100")
AWS_WINDOWS_INSTANCE_TYPE = 't3.xlarge'
EKS_VERSION = os.environ.get("RANCHER_EKS_K8S_VERSION")
EKS_ROLE_ARN = os.environ.get("RANCHER_EKS_ROLE_ARN")
EKS_WORKER_ROLE_ARN = os.environ.get("RANCHER_EKS_WORKER_ROLE_ARN")
AWS_SUBNETS = []
if ',' in AWS_SUBNET:
AWS_SUBNETS = AWS_SUBNET.split(',')
else:
AWS_SUBNETS = [AWS_SUBNET]
class AmazonWebServices(CloudProviderBase):
def __init__(self):
self._client = boto3.client(
'ec2',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION)
self._elbv2_client = boto3.client(
'elbv2',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION)
self._route53_client = boto3.client(
'route53',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY)
self._db_client = boto3.client(
'rds',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION)
self._eks_client = boto3.client(
'eks',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION)
self._ec2_resource = boto3.resource(
'ec2',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION
)
self.master_ssh_key = None
self.master_ssh_key_path = None
if AWS_SSH_KEY_NAME:
self.master_ssh_key = self.get_ssh_key(AWS_SSH_KEY_NAME)
self.master_ssh_key_path = self.get_ssh_key_path(AWS_SSH_KEY_NAME)
# Used for cleanup
self.created_node = []
self.created_keys = []
def create_node(self, node_name, ami=AWS_AMI, ssh_user=AWS_USER,
key_name=None, wait_for_ready=True, public_ip=True):
volume_size = AWS_VOLUME_SIZE
instance_type = AWS_INSTANCE_TYPE
if ssh_user == "Administrator":
volume_size = AWS_WINDOWS_VOLUME_SIZE
instance_type = AWS_WINDOWS_INSTANCE_TYPE
if key_name:
# if cert private key
if key_name.endswith('.pem'):
ssh_private_key_name = key_name
ssh_private_key = self.get_ssh_key(key_name)
ssh_private_key_path = self.get_ssh_key_path(key_name)
else:
# get private key
ssh_private_key_name = key_name.replace('.pub', '')
ssh_private_key = self.get_ssh_key(ssh_private_key_name)
ssh_private_key_path = self.get_ssh_key_path(
ssh_private_key_name)
else:
key_name = AWS_SSH_KEY_NAME.replace('.pem', '')
ssh_private_key_name = key_name
ssh_private_key = self.master_ssh_key
ssh_private_key_path = self.master_ssh_key_path
args = {"ImageId": ami,
"InstanceType": instance_type,
"MinCount": 1,
"MaxCount": 1,
"TagSpecifications": [
{'ResourceType': 'instance',
'Tags': [
{'Key': 'Name', 'Value': node_name},
{'Key': 'CICD', 'Value': AWS_CICD_INSTANCE_TAG}
]}
],
"KeyName": key_name,
"NetworkInterfaces": [
{'DeviceIndex': 0,
'AssociatePublicIpAddress': public_ip,
'Groups': [AWS_SECURITY_GROUP]
}
],
"Placement": {'AvailabilityZone': AWS_REGION_AZ},
"BlockDeviceMappings":
[{"DeviceName": "/dev/sda1",
"Ebs": {"VolumeSize": int(volume_size)}
}]
}
if len(AWS_IAM_PROFILE) > 0:
args["IamInstanceProfile"] = {'Name': AWS_IAM_PROFILE}
args["TagSpecifications"][0]["Tags"].append(
{'Key': 'kubernetes.io/cluster/c-abcde', 'Value': "owned"}
)
instance = self._client.run_instances(**args)
node = Node(
provider_node_id=instance['Instances'][0]['InstanceId'],
state=instance['Instances'][0]['State']['Name'],
ssh_user=ssh_user,
ssh_key_name=ssh_private_key_name,
ssh_key_path=ssh_private_key_path,
ssh_key=ssh_private_key,
docker_version=self.DOCKER_VERSION,
docker_installed=self.DOCKER_INSTALLED)
# mark for clean up at the end
self.created_node.append(node.provider_node_id)
if wait_for_ready:
node = self.wait_for_node_state(node)
if public_ip:
node.ready_node()
else:
time.sleep(60)
return node
def create_multiple_nodes(self, number_of_nodes, node_name_prefix,
ami=AWS_AMI, ssh_user=AWS_USER,
key_name=None, wait_for_ready=True,
public_ip=True):
nodes = []
for i in range(number_of_nodes):
node_name = "{}-{}".format(node_name_prefix, i)
nodes.append(self.create_node(node_name,
ami=ami, ssh_user=ssh_user,
key_name=key_name,
wait_for_ready=False,
public_ip=public_ip))
if wait_for_ready:
nodes = self.wait_for_nodes_state(nodes)
# wait for window nodes to come up so we can decrypt the password
if ssh_user == "Administrator":
time.sleep(60 * 6)
for node in nodes:
node.ssh_password = \
self.decrypt_windows_password(node.provider_node_id)
if public_ip:
for node in nodes:
node.ready_node()
else:
time.sleep(60)
return nodes
def get_node(self, provider_id, ssh_access=False):
node_filter = [{
'Name': 'instance-id', 'Values': [provider_id]}]
try:
response = self._client.describe_instances(Filters=node_filter)
nodes = response.get('Reservations', [])
if len(nodes) == 0:
return None # no node found
aws_node = nodes[0]['Instances'][0]
node = Node(
provider_node_id=provider_id,
# node_name= aws_node tags?,
host_name=aws_node.get('PublicDnsName'),
public_ip_address=aws_node.get('PublicIpAddress'),
private_ip_address=aws_node.get('PrivateIpAddress'),
state=aws_node['State']['Name'])
if ssh_access:
node.ssh_user = AWS_USER
node.ssh_key_name = AWS_SSH_KEY_NAME.replace('.pem', '')
node.ssh_key_path = self.master_ssh_key_path
node.ssh_key = self.master_ssh_key
return node
except Boto3Error as e:
msg = "Failed while querying instance '{}' state!: {}".format(
node.node_id, str(e))
raise RuntimeError(msg)
def update_node(self, node):
node_filter = [{
'Name': 'instance-id', 'Values': [node.provider_node_id]}]
try:
response = self._client.describe_instances(Filters=node_filter)
nodes = response.get('Reservations', [])
if len(nodes) == 0 or len(nodes[0]['Instances']) == 0:
return node
aws_node = nodes[0]['Instances'][0]
node.state = aws_node['State']['Name']
node.host_name = aws_node.get('PublicDnsName')
node.public_ip_address = aws_node.get('PublicIpAddress')
node.private_ip_address = aws_node.get('PrivateIpAddress')
return node
except Boto3Error as e:
msg = "Failed while querying instance '{}' state!: {}".format(
node.node_id, str(e))
raise RuntimeError(msg)
def start_node(self, node, wait_for_start=True):
self._client.start_instances(
InstanceIds=[node.provider_node_id])
if wait_for_start:
node = self.wait_for_node_state(node)
return node
def reboot_nodes(self, nodes):
instances = [node.provider_node_id for node in nodes]
self._client.reboot_instances(
InstanceIds=instances)
return
def stop_node(self, node, wait_for_stopped=False):
self._client.stop_instances(
InstanceIds=[node.provider_node_id])
if wait_for_stopped:
node = self.wait_for_node_state(node, 'stopped')
return node
def delete_node(self, node, wait_for_deleted=False):
self._client.terminate_instances(
InstanceIds=[node.provider_node_id])
if wait_for_deleted:
node = self.wait_for_node_state(node, 'terminated')
return node
def delete_eks_cluster(self, cluster_name):
ng_names = self._eks_client.list_nodegroups(clusterName=cluster_name)
for node_group in ng_names['nodegroups']:
print("Deleting node group: " + node_group)
delete_ng_response = self._eks_client.delete_nodegroup(
clusterName=cluster_name,
nodegroupName=node_group)
waiter_ng = self._eks_client.get_waiter('nodegroup_deleted')
for node_group in ng_names['nodegroups']:
print("Waiting for deletion of: " + node_group)
waiter_ng.wait(clusterName=cluster_name, nodegroupName=node_group)
print("Deleting cluster: "+ cluster_name)
delete_response = self._eks_client.delete_cluster(name=cluster_name)
return delete_response
def wait_for_node_state(self, node, state='running'):
# 'running', 'stopped', 'terminated'
timeout = 300
start_time = time.time()
while time.time() - start_time < timeout:
node = self.update_node(node)
if node.state == state:
return node
time.sleep(5)
def wait_for_nodes_state(self, nodes, state='running'):
# 'running', 'stopped', 'terminated'
timeout = 300
start_time = time.time()
completed_nodes = []
while time.time() - start_time < timeout:
for node in nodes:
if len(completed_nodes) == len(nodes):
time.sleep(20) # Give the node some extra time
return completed_nodes
if node in completed_nodes:
continue
node = self.update_node(node)
if node.state == state:
completed_nodes.append(node)
time.sleep(1)
time.sleep(4)
def import_ssh_key(self, ssh_key_name, public_ssh_key):
self._client.delete_key_pair(KeyName=ssh_key_name)
self._client.import_key_pair(
KeyName=ssh_key_name,
PublicKeyMaterial=public_ssh_key)
# mark keys for cleanup
self.created_keys.append(ssh_key_name)
def delete_ssh_key(self, ssh_key_name):
self._client.delete_key_pair(KeyName=ssh_key_name)
def get_nodes(self, filters):
try:
response = self._client.describe_instances(Filters=filters)
nodes = response.get('Reservations', [])
if len(nodes) == 0:
return None # no node found
ret_nodes = []
for aws_node_i in nodes:
aws_node = aws_node_i['Instances'][0]
node = Node(
provider_node_id=aws_node.get('InstanceId'),
# node_name= aws_node tags?,
host_name=aws_node.get('PublicDnsName'),
public_ip_address=aws_node.get('PublicIpAddress'),
private_ip_address=aws_node.get('PrivateIpAddress'),
state=aws_node['State']['Name'])
ret_nodes.append(node)
return ret_nodes
except Boto3Error as e:
msg = "Failed while getting instances: {}".format(str(e))
raise RuntimeError(msg)
def delete_nodes(self, nodes, wait_for_deleted=False):
instance_ids = [node.provider_node_id for node in nodes]
self._client.terminate_instances(InstanceIds=instance_ids)
if wait_for_deleted:
for node in nodes:
node = self.wait_for_node_state(node, 'terminated')
def delete_keypairs(self, name_prefix):
if len(name_prefix) > 0:
key_pairs = self._client.describe_key_pairs()
print(key_pairs["KeyPairs"])
key_pair_list = key_pairs["KeyPairs"]
print(len(key_pair_list))
for key in key_pair_list:
keyName = key["KeyName"]
if keyName.startswith(name_prefix):
print(keyName)
self._client.delete_key_pair(KeyName=keyName)
def _s3_list_files(self, client):
"""List files in specific S3 URL"""
response = client.list_objects(
Bucket=os.environ.get("AWS_S3_BUCKET_NAME", ""),
Prefix=os.environ.get("AWS_S3_BUCKET_FOLDER_NAME", ""))
for content in response.get('Contents', []):
yield content.get('Key')
def s3_backup_check(self, filename=""):
print(AWS_REGION)
print(AWS_REGION_AZ)
client = boto3.client(
's3',
aws_access_key_id=AWS_ACCESS_KEY_ID,
aws_secret_access_key=AWS_SECRET_ACCESS_KEY,
region_name=AWS_REGION)
file_list = self._s3_list_files(client)
found = False
for file in file_list:
print(file)
if filename in file:
found = True
break
return found
def register_targets(self, targets, target_group_arn):
self._elbv2_client.register_targets(
TargetGroupArn=target_group_arn,
Targets=targets)
def describe_target_health(self, target_group_arn):
return self._elbv2_client.describe_target_health(
TargetGroupArn=target_group_arn)
def deregister_all_targets(self, target_group_arn):
target_health_descriptions = \
self.describe_target_health(target_group_arn)
if len(target_health_descriptions["TargetHealthDescriptions"]) > 0:
targets = []
for target in \
target_health_descriptions["TargetHealthDescriptions"]:
target_obj = target["Target"]
targets.append(target_obj)
self._elbv2_client.deregister_targets(
TargetGroupArn=target_group_arn,
Targets=targets)
def create_network_lb(self, name, scheme='internet-facing'):
return self._elbv2_client.create_load_balancer(
Name=name, Subnets=[AWS_SUBNET], Scheme=scheme, Type='network'
)
def delete_lb(self, loadBalancerARN):
self._elbv2_client.delete_load_balancer(
LoadBalancerArn=loadBalancerARN
)
def create_ha_target_group(self, port, name):
return self._elbv2_client.create_target_group(
Name=name,
Protocol='TCP',
Port=port,
VpcId=AWS_VPC_ID,
HealthCheckProtocol='HTTP',
HealthCheckPort='80',
HealthCheckEnabled=True,
HealthCheckPath='/healthz',
HealthCheckIntervalSeconds=10,
HealthCheckTimeoutSeconds=6,
HealthyThresholdCount=3,
UnhealthyThresholdCount=3,
Matcher={
'HttpCode': '200-399'
},
TargetType='instance'
)
def delete_target_group(self, targetGroupARN):
self._elbv2_client.delete_target_group(
TargetGroupArn=targetGroupARN
)
def create_ha_nlb_listener(self, loadBalancerARN, port, targetGroupARN):
return self._elbv2_client.create_listener(
LoadBalancerArn=loadBalancerARN,
Protocol='TCP',
Port=port,
DefaultActions=[{'Type': 'forward',
'TargetGroupArn': targetGroupARN}]
)
def upsert_route_53_record_cname(
self, record_name, record_value, action='UPSERT',
record_type='CNAME', record_ttl=300):
return self._route53_client.change_resource_record_sets(
HostedZoneId=AWS_HOSTED_ZONE_ID,
ChangeBatch={
'Comment': 'Record created or updated for automation',
'Changes': [{
'Action': action,
'ResourceRecordSet': {
'Name': record_name,
'Type': record_type,
'TTL': record_ttl,
'ResourceRecords': [{
'Value': record_value
}]
}
}]
}
)
def delete_route_53_record(self, record_name):
record = None
try:
res = self._route53_client.list_resource_record_sets(
HostedZoneId=AWS_HOSTED_ZONE_ID,
StartRecordName=record_name,
MaxItems='1')
if len(res["ResourceRecordSets"]) > 0:
record = res["ResourceRecordSets"][0]
except ClientError as e:
print(e.response)
if record is not None and record["Name"] == record_name:
self._route53_client.change_resource_record_sets(
HostedZoneId=AWS_HOSTED_ZONE_ID,
ChangeBatch={
'Comment': 'delete record',
'Changes': [{
'Action': 'DELETE',
'ResourceRecordSet': record}]
}
)
def decrypt_windows_password(self, instance_id):
password = ""
password_data = self._client. \
get_password_data(InstanceId=instance_id)['PasswordData']
if password_data:
password = base64.b64decode(password_data)
with open(self.get_ssh_key_path(AWS_SSH_KEY_NAME), 'r') \
as privkeyfile:
priv = rsa.PrivateKey.load_pkcs1(privkeyfile.read())
password = rsa.decrypt(password, priv).decode('utf-8')
return password
def get_ebs_volumes(self, provider_node_id):
node_filter = [{
'Name': 'attachment.instance-id', 'Values': [provider_node_id]}]
try:
response = self._client.describe_volumes(Filters=node_filter)
volumes = response.get('Volumes', [])
return volumes
except (Boto3Error, RuntimeError) as e:
msg = "Failed while querying instance '{}' volumes!: {}".format(
provider_node_id, str(e))
raise RuntimeError(msg)
def get_security_group_name(self, security_group_id):
sg_filter = [{
'Name': 'group-id', 'Values': [security_group_id]}]
try:
response = self._client.describe_security_groups(Filters=sg_filter)
security_groups = response.get('SecurityGroups', [])
if len(security_groups) > 0:
return security_groups[0]['GroupName']
except Boto3Error as e:
msg = "Failed while querying security group name for '{}' " \
"in region {}: {}".format(security_group_id,
AWS_REGION, str(e))
raise RuntimeError(msg)
def get_target_groups(self, lb_arn):
tg_list = []
try:
res = self._elbv2_client.describe_listeners(
LoadBalancerArn=lb_arn)
except ClientError:
return tg_list
if res is not None:
for item in res["Listeners"]:
tg_arn = item["DefaultActions"][0]["TargetGroupArn"]
tg_list.append(tg_arn)
return tg_list
def get_lb(self, name):
try:
res = self._elbv2_client.describe_load_balancers(Names=[name])
return res['LoadBalancers'][0]['LoadBalancerArn']
except ClientError:
return None
def get_db(self, db_id):
try:
res = self._db_client.\
describe_db_instances(DBInstanceIdentifier=db_id)
return res['DBInstances'][0]['DBInstanceIdentifier']
except ClientError:
return None
def delete_db(self, db_id):
try:
self._db_client.delete_db_instance(DBInstanceIdentifier=db_id,
SkipFinalSnapshot=True,
DeleteAutomatedBackups=True)
except ClientError:
return None
def create_eks_cluster(self, name):
for sn in AWS_SUBNETS:
self.set_subnet_tag(sn, name)
kubeconfig_path = self.create_eks_controlplane(name)
self.create_eks_nodegroup(name, '{}-ng'.format(name))
return kubeconfig_path
def create_eks_controlplane(self, name):
vpcConfiguration = {
"subnetIds": AWS_SUBNETS,
"securityGroupIds": [AWS_SECURITY_GROUP],
"endpointPublicAccess": True,
"endpointPrivateAccess": False
}
self._eks_client.\
create_cluster(name=name,
version=EKS_VERSION,
roleArn=EKS_ROLE_ARN,
resourcesVpcConfig=vpcConfiguration)
return self.wait_for_eks_cluster_state(name, "ACTIVE")
def create_eks_nodegroup(self, cluster_name, name):
scaling_config = {
"minSize": 3,
"maxSize": 3,
"desiredSize": 3
}
remote_access = {
"ec2SshKey": AWS_SSH_KEY_NAME.replace('.pem', '')
}
ng = self._eks_client.\
create_nodegroup(clusterName=cluster_name,
nodegroupName=name,
scalingConfig=scaling_config,
diskSize=20,
subnets=AWS_SUBNETS,
instanceTypes=[AWS_INSTANCE_TYPE],
nodeRole=EKS_WORKER_ROLE_ARN,
remoteAccess=remote_access)
waiter_ng = self._eks_client.get_waiter('nodegroup_active')
waiter_ng.wait(clusterName=cluster_name, nodegroupName=name)
return ng
def describe_eks_cluster(self, name):
try:
return self._eks_client.describe_cluster(name=name)
except ClientError:
return None
def describe_eks_nodegroup(self, cluster_name, nodegroup_name):
try:
return self._eks_client.describe_nodegroup(
clusterName=cluster_name,
nodegroupName=nodegroup_name
)
except ClientError:
return None
def set_subnet_tag(self, subnet_id, cluster_name):
subnet = self._ec2_resource.Subnet(subnet_id)
cluster_tag = 'kubernetes.io/cluster/{0}'.format(cluster_name)
subnet.create_tags(
Tags=[
{
'Key': cluster_tag,
'Value': 'shared'
}
]
)
def wait_for_eks_cluster_state(self, name, target_state, timeout=1200):
start = time.time()
cluster = self.describe_eks_cluster(name)['cluster']
status = cluster['status']
while status != target_state:
if time.time() - start > timeout:
raise AssertionError(
"Timed out waiting for state to get to " + target_state)
time.sleep(5)
cluster = self.describe_eks_cluster(name)['cluster']
status = cluster['status']
print(status)
return cluster
def wait_for_delete_eks_cluster(self, cluster_name):
ng_names = self._eks_client.list_nodegroups(clusterName=cluster_name)
waiter_ng = self._eks_client.get_waiter('nodegroup_deleted')
for node_group in ng_names['nodegroups']:
print ("Waiting for deletion of nodegroup: {}".format(node_group))
waiter_ng.wait(clusterName=cluster_name, nodegroupName=node_group)
print ("Waiting for deletion of cluster: {}".format(cluster_name))
waiter = self._eks_client.get_waiter('cluster_deleted')
waiter.wait(name=cluster_name)
def disable_source_dest_check(self, instance_id):
response = self._client.modify_instance_attribute(
SourceDestCheck={'Value': False},
InstanceId=instance_id)
return response