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Handy AWS tools from Jim Browne and 42Lines

  • tag-images-with-os - For each image in a region, create a tag (default "os") containing the name from the AMI used for the instance. Example output:
jbrowne@foo:~$ ~/awstools/tag-images-with-os --trace
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-lucid-10.04-i386-server-20100827
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-lucid-10.04-amd64-server-20101228
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-maverick-10.10-i386-server-20101225
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-maverick-10.10-amd64-server-20101225
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-maverick-10.10-amd64-server-20101225
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-precise-12.04-amd64-server-20121026.1
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=ubuntu-precise-12.04-amd64-server-20121026.1
Looking up AMI ami-xxxxxxxx for instance i-xxxxxxxx
Tagging i-xxxxxxxx with os=Windows_Server-2008-R2_SP1-English-64Bit-Base-2012.10.10
  • server-certificate-check - Check server certificates in IAM for expiration and other issues. Example output:
Certificate subject is C=US, ST=California, L=San Francisco, O=Example Corporation, OU=IT, CN=page.example.com
+ 508 days left before expiration (2013-10-26 23:59:59+00:00)
Chain certificate subject is C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 International Server CA - G3
+ Certificate issuer matches chain subject

Certificate subject is C=US, ST=California, L=San Francisco, O=Example Corporation, OU=IT, CN=bonham.example.com
- Key length less than 2048 bits!
- Certificate is expired! 2012-02-22 23:59:59+00:00
Chain certificate subject is O=VeriSign Trust Network, OU=VeriSign, Inc., OU=VeriSign International Server CA - Class 3, OU=www.verisign.com/CPS Incorp.by Ref. LIABILITY LTD.(c)97 VeriSign
+ Certificate issuer matches chain subject

Certificate subject is C=US, ST=California, L=San Francisco, O=Example Corporation, OU=IT, CN=*.dev.example.com
+ 3 days left before expiration (2012-06-08 23:59:59+00:00)
Chain certificate subject is C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Secure Server CA - G3
+ Certificate issuer matches chain subject
  • reserved-instances-check - Examine all running instances and current reserved instance purchases. Suggest changes based on current data. Optionally print detail about running instances and reserved instances. Example output:
jbrowne@foo:~/awstools$ ./reserved-instances-check --quiet --itag=hostname --rdays=300

Advice based on current data:

1 candidate(s) for a reservation purchase in account main region us-east-1 zone us-east-1a
id i-deadbeef start 2011-12-16T02:58 (rockstar.dev.example.com)

1 unused reservation(s) in account main region us-east-1 zone us-east-1d
Use --rdetail to see reservation details

1 reservations(s) about to expire in account main region us-east-1 zone us-east-1d
id deadbeef-f000-baaa-dead-baaaaaaaaaaaa state active region RegionInfo:us-east-1 place us-east-1d type c1.xlarge count 1 start 2011-09-19T21:58 duration 365 elapsed 267 left 98

jbrowne@foo:~/awstools$ ./reserved-instances-check --itag=hostname
Account: main

Zone: us-east-1c
  Type m1.large Reservations 12 Instances 13 Delta 1

Zone: us-east-1a
  Type m1.large Reservations 93 Instances 100 Delta 7

Zone: us-east-1b
  Type c1.xlarge Reservations 21 Instances 20 Delta -1

[snipped advice section]

jbrowne@foo:~/awstools$ ~/boto-dev/bin/python ./reserved-instances-check --itag=hostname --rdetail
Account: main

Zone: us-east-1c
  Type m1.large Reservations 12 Instances 13 Delta 1
    Reservations:
      count 11 start 2011-09-19T22:15 duration 365 elapsed 266 left 99,
      count 1 start 2011-09-19T22:15 duration 1095 elapsed 266 left 829

Zone: us-east-1a
  Type m1.large Reservations 93 Instances 100 Delta 7
    Reservations:
      count 92 start 2011-09-19T22:11 duration 365 elapsed 267 left 98,
      count 1 start 2011-09-19T22:14 duration 1095 elapsed 266 left 829

Zone: us-east-1b
  Type c1.xlarge Reservations 21 Instances 20 Delta -1
    Reservations:
      count 21 start 2011-09-19T21:58 duration 365 elapsed 267 left 98

  • elastic-ip-check - Check for unused elastic IPs in all EC2 regions. Optionally report on in-use elastic IPs. Example output:
jbrowne@foo:~/awstools$ ./elastic-ip-check --used --itag=hostname
Account main Region us-east-1 in-use elastic IPs:
75.110.109.42 Instance i-deadbeef (bonham.example.com)
174.219.210.19 Instance i-f00dbaad (page.example.com)

jbrowne@foo:~/awstools$ ./elastic-ip-check
Account main Region us-east-1 unused elastic IPs:
107.20.114.174
107.20.109.42
  • availability-zones-check - NAGIOS plugin to WARN when availability zones are impaired

First install pynagios and boto3:

easy_install pynagios
easy_install boto3

Example output:

jbrowne@foo:~/awstools$ ./availability-zones-check
WARN: us-east-1:us-east-1d state impaired ("We are continuing to work to recover the remaining EC2 instances, EBS volumes and ELBs.")
jbrowne@foo:~/awstools$ echo $?
1
  • volume-status-check - NAGIOS plugin to WARN when volumes are impaired
jbrowne@foo:~/awstools$ ./volume-status-check
WARN: vol-deadbeef:potential-data-inconsistency IO Enabled nb 2012-06-30T05:09:46.000Z, vol-abcd1234:potential-data-inconsistency IO Enabled nb 2012-06-30T10:13:22.000Z
  • instance-events-check - NAGIOS plugin to WARN when instances have pending status events
jbrowne@foo:~/awstools$ ./instance-events-check
WARN: i-b74ebad3:instance-stop The instance is running on degraded hardware nb 2012-06-19T00:00:00.000Z

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