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from __future__ import print_function | |
import json | |
import boto3 | |
import logging | |
#setup simple logging for INFO | |
logger = logging.getLogger() | |
logger.setLevel(logging.ERROR) | |
#define the connection region | |
ec2 = boto3.resource('ec2', region_name="us-west-2") | |
#Set this to True if you don't want the function to perform any actions | |
debugMode = False | |
def lambda_handler(event, context): | |
#List all EC2 instances | |
base = ec2.instances.all() | |
#loop through by running instances | |
for instance in base: | |
#Tag the Volumes | |
for vol in instance.volumes.all(): | |
#print(vol.attachments[0]['Device']) | |
if debugMode == True: | |
print("[DEBUG] " + str(vol)) | |
tag_cleanup(instance, vol.attachments[0]['Device']) | |
else: | |
tag = vol.create_tags(Tags=tag_cleanup(instance, vol.attachments[0]['Device'])) | |
print("[INFO]: " + str(tag)) | |
#Tag the Network Interfaces | |
for eni in instance.network_interfaces: | |
#print(eni.attachment['DeviceIndex']) | |
if debugMode == True: | |
print("[DEBUG] " + str(eni)) | |
tag_cleanup(instance, "eth"+str(eni.attachment['DeviceIndex'])) | |
else: | |
tag = eni.create_tags(Tags=tag_cleanup(instance, "eth"+str(eni.attachment['DeviceIndex']))) | |
print("[INFO]: " + str(tag)) | |
#------------- Functions ------------------ | |
#returns the type of configuration that was performed | |
def tag_cleanup(instance, detail): | |
tempTags=[] | |
v={} | |
for t in instance.tags: | |
#pull the name tag | |
if t['Key'] == 'Name': | |
v['Value'] = t['Value'] + " - " + str(detail) | |
v['Key'] = 'Name' | |
tempTags.append(v) | |
#Set the important tags that should be written here | |
elif t['Key'] == 'Application Owner': | |
print("[INFO]: Application Owner Tag " + str(t)) | |
tempTags.append(t) | |
elif t['Key'] == 'Cost Center': | |
print("[INFO]: Cost Center Tag " + str(t)) | |
tempTags.append(t) | |
elif t['Key'] == 'Date Created': | |
print("[INFO]: Date Created Tag " + str(t)) | |
tempTags.append(t) | |
elif t['Key'] == 'Requestor': | |
print("[INFO]: Requestor Tag " + str(t)) | |
tempTags.append(t) | |
elif t['Key'] == 'System Owner': | |
print("[INFO]: System Owner Tag " + str(t)) | |
tempTags.append(t) | |
else: | |
print("[INFO]: Skip Tag - " + str(t)) | |
print("[INFO] " + str(tempTags)) | |
return(tempTags) |
@jamesduffy i want to exclude some ec2 instances and volumes from tagging, how can i do that?
@jamesduffy i want to exclude some ec2 instances and volumes from tagging, how can i do that?
I don't know if negative filters work in boto3. I haven't tried it, but I would start there. I would try to add a tag to the instances/resources that tell the script not to copy the tags. For example my ideal setup I would create a copy-tags-ignore=true
on anything I wanted to ignore. Then if I can't do a negative filter to replace boto3.resource('ec2').instances.all()
. If I can't use a negative filter than if you can check for that tag in the for loop and check if it exists and continue
if it is exists and set to true.
Not ideal instead of using a tag named something like copy-tags-ignore
you could create a list of resource names you don't want the script to copy and in the loop do a check like if instance.tags['Name'] in do_not_copy
continue instead of copying.
i got this:
import boto3
def lambda_handler(event, context):
is_test = context.function_name == 'test' # this value is injected by SAM local
instances = boto3.resource('ec2').instances.all()
But actually i need to exclude some ec2 instances and volumes from tagging, how can i do that?