shrift is a minimal spec framework for testing your infrastructure using bash. shrift installs as a single script and executes bash one-liners as a test suite. No complex setup. No DSL.
Download shrift.
# download the script
$ curl -L -o shrift https:/thisendout/shrift/raw/master/shrift
# make executable
$ chmod +x shrift
Write and run your first spec.
# write a passing test
$ echo "test -x ./shrift" > test_spec.sh
# execute with shrift
$ ./shrift test_spec.sh
By default, shrift searches for files matching *_spec.sh in the current directory. You can pass a space-separated list of paths to shrift to expand the suite.
$ ./shrift specs # _spec.sh files in a sub-directory
$ ./shrift specs/{common,web} # _spec.sh split up by role, one per directory
$ ./shrift specs/{common,web}_spec.sh # _spec.sh split up by role, one per file
$ ./shrift specs/**/*.sh # globbing and wilcards are supported
Spec files must contain one test per line. A test is considered passing when the return code is 0. Any other condition is considered a failure.
# example spec file
test -f /etc/passwd
whoami | grep root
/usr/local/bin/my_test_script
netstat -lntp | grep 80
Spec files may source a functions file or contain user-defined inline functions (contained on a single line) to encapsulate commonly used commands. For example, if there were a number of spec's checking for individual ports, instead of repeating the command, a one-liner function could be used instead.
# before function
netstat -lntp | grep 22
netstat -lntp | grep 80
netstat -lntp | grep 443
# define function
port() { netstat -lntp | grep $1; }
# after function
port 22
port 80
port 443
Sourcing a common functions file is also a supported workflow. For example:
# my_functions.sh
function port() { netstat -lntp | grep $1; }
process() { ps ax | grep $1; }
mode() { stat -c "%a" $1 | grep $2; }
# my_spec.sh
source my_functions.sh
port 22
process sshd
mode /etc/passwd 644
By default, shrift executes the specs locally. shrift can also execute using docker exec and ssh, if the clients are already installed.
$ ./shrift -d [container_id] # Run specs against a *running* container
$ ./shrift -s [hostname] # Run specs against a remote host via SSH
For docker and ssh backends, custom client-specific options can be passed using -o 'opts...'.
For the ssh backends, each spec is executed using a separate ssh command. We recommend setting up ControlMaster and ControlPersist to re-use ssh sessions.
By default, shrift shows output from failing tests and a summary. If you want to see the output from all tests, set the verbose flag by passing -v.
A # comment line will start a new test block. shrift will add subsequent tests to the block until another comment or empty line is encountered. Blocks are only used in formatting output; they do not modify how the tests are executed.
MIT License
© 2015 This End Out, LLC