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blessclient.cfg.sample
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blessclient.cfg.sample
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# Sample blessclient.cfg file
[MAIN]
# region_aliases: These are regions that can be passed on the commandline of blessclient,
# using the --region option, to specify the AWS region. You must have at least one region
# defined. If the client can't connect to aws services in the region, it will try the next
# region.
region_aliases: WEST, EAST
# kms_service_name: Name that will be set in the "To" context for the kmsauth token. Your
# Lambda must have permissions to decrypt with each of the kms keys when the "To" context
# is set to this string. Setting policy appropriately can prevent a staging/dev kmsauth
# token from being used to authenticate to the production Lambda.
kms_service_name: bless-production
# bastion_ips: These IPs and/or netmasks will be added as valid source IPs to every
# certificate issued. If your users proxy / agent-forward through a bastion host, then
# the internal IP of each should be listed here.
bastion_ips: 10.100.1.230,192.168.200.0/24
# remote_user: The remote username to authorize for SSH within the certificate.
# Defaults to the AWS user requesting the certificate
[CLIENT]
# domain_regex: A (python) regex that is tested by the blessclient to determine if we need
# to run bless and get a certificate, or if we can skip it. This prevents blessclient from
# making your users wait to get a certificate when they connect to github, etc.
domain_regex: (.*\.example\.com|.*\.example\.net|\A10\.100(?:\.[0-9]{1,3}){2}\Z)$
# cache_dir / cache_file: file and directory (in the user's home directory) where we cache
# information about the user. Blessclient will cache AWS tokens here, so the directory should
# have permissions to only let the user read the cache.
cache_dir: .bless/session
cache_file: bless_cache.json
# mfa_cache_dir / mfa_cache_file: If you organization has another tool that generates and
# caches AWS tokens for your users, you can list it here. Blessclient will attempt to use
# any cached credentials to identify the user, to reduce the number of times the user must
# input their MFA code. TODO: make the client gracefully not use this by default.
mfa_cache_dir: .aws/session
mfa_cache_file: token_cache.json
# ip_urls: comma-separated list of urls that can provide a user's public IP address. This
# IP will be added as an authorized IP to the user's certificate, preventing a stolen
# SSH certificate from being used by another IP.
ip_urls: http://api.ipify.org, http://canihazip.com
# update_script: This script will be called after 7 days of use, so you can push updates
# to your users. Your update script should use some mechanism to verify the integrity of
# the code. Script is relative to the path where blessclient was downloaded.
update_script: update_blessclient.sh
# user_session_length: The length of time that we request AWS issues the session tokens for
# when the user inputs their MFA code. This defaults to 64800 seconds (18 hours). The value
# must be in the range 900-129600, or the sts call will fail.
# usebless_role_session_length: Then length of time that we request AWS issues the session
# tokens for when the user assumes the role necessary to call the BLESS Lambda. The default
# is 3600 seconds (1 hour). The value must be in the range 900-3600.
[LAMBDA]
# user_role: IAM Role that the user will assume, in order to run the BLESS Lambda. This
# role should be in the same AWS account as your Lambda.
user_role: use-bless
# account_id: AWS account id where the BLESS Lambda is setup. For production, you probably
# want the Lambda running in a separate AWS account, to better protect the CA private key.
account_id: 000000000000
# functionname: The name of the BLESS Lambda function
functionname: bless
# functionversion: The version alias we use when invoking the Lambda. If you make a change
# to the Lambda function's api, then you can bump this version, and new versions of the client
# code will access the new Lambda. You can also have a set of users call a "canary" version of
# the Lambda, to test new changes. See the AWS Lambda docs for information about aliases.
functionversion: PROD-1-2
# certlifetime: Let the client know how long the Lambda will set the certificate's validity.
# This DOES NOT control the time limit, but lets blessclient know how long to use a certificate
# before refreshing. TODO: read this directly from the certificate.
certlifetime: 1800
# ipcachelifetime: How long to cache the user's current public IP address, before querying
# the ip_urls to see if the user's IP has changed since we last issued a certificate. If your
# users work from one place, you can set this long (to reduce the time to issue a cert), but
# if they move around a lot (e.g., ssh-ing from a moving vehicle while tethered) then decrease
# this. Users can set BLESSIPCACHELIFETIME in their environment to temporarily change this.
ipcachelifetime: 120
# timeout_connect / timeout_read: Set connection timeouts (in seconds) for the boto3 connection
# to the AWS Lambda. If the connection fails, the client will try in the next AWS region.
timeout_connect: 5
timeout_read: 10
# REGION sections (REGION_<ALIAS>, for each region_aliases defined). Must have the AWS
# region specified, as well as the kmsauth key in that region.
[REGION_WEST]
awsregion: us-west-2
kmsauthkey: 12345678-abab-cdcd-efef-123456789011
[REGION_EAST]
awsregion: us-east-1
kmsauthkey: 22345678-abab-cdcd-efef-123456789012