DevOps, Linux, SQL, Web, Big Data, NoSQL, templates for various programming languages and Kubernetes. All programs have
--help
.
Hari Sekhon
Cloud & Big Data Contractor, United Kingdom
(you're welcome to connect with me on LinkedIn)
Make sure you run make update
if updating and not just git pull
as you will often need the latest library
submodule and possibly new upstream libraries
All programs and their pre-compiled dependencies can be found ready to run on DockerHub.
List all programs:
docker run harisekhon/perl-tools
Run any given program:
docker run harisekhon/perl-tools <program> <args>
installs git, make, pulls the repo and build the dependencies:
curl -L https://git.io/perl-bootstrap | sh
or manually
git clone https://github.com/HariSekhon/DevOps-Perl-tools perl-tools
cd perl-tools
make
Make sure to read Detailed Build Instructions further down for more information.
Optional: Generate self-contained Perl scripts with all dependencies built in to each file for easy distribution
After the make
build has finished, if you want to make self-contained versions of all the perl scripts with all
dependencies included for copying around, run:
make fatpacks
The self-contained scripts will be available in the fatpacks/
directory which is also tarred to fatpacks.tar.gz
.
All programs come with a --help
switch which includes a program description and the list of command line options.
Environment variables are supported for convenience and also to hide credentials from being exposed in the process list
eg. $PASSWORD
. These are indicated in the --help
descriptions in brackets next to each option and often have more
specific overrides with higher precedence eg. $SOLR_HOST
takes priority over $HOST
.
NOTE: Hadoop HDFS API Tools, Pig => Elasticsearch/Solr, Pig Jython UDFs and authenticated PySpark IPython Notebook have moved to my DevOps Python Tools repo
anonymize.pl
- anonymizes your configs / logs from files or stdin (for pasting to Apache Jira tickets or mailing- lists)
- anonymizes:
anonymize_custom.conf
- put regex of your Name/Company/Project/Database/Tables to anonymize to<custom>
placeholder tokens indicate what was stripped out (eg.<fqdn>
,<password>
,<custom>
)--ip-prefix
leaves the last IP octect to aid in cluster debugging to still see differentiated nodes communicating with each other to compare configs and log communications
diffnet.pl
- simplifies diff output to show only lines added/removed, not moved, from patch files or stdin (pipe from standarddiff
orgit diff
commands)xml_diff.pl
/hadoop_config_diff.pl
- tool to help find differences between XML / Hadoop configs, can diff XML from HTTP addresses to diff live running clusterstitlecase.pl
- capitalizes the first letter of each input word in files or stdinpdf_to_txt.pl
- converts PDF to text for analytics (see also Apache PDFBox and pdf2text unix tool)java_show_classpath.pl
- shows Java classpaths, one per line, of currently running Java programsflock.pl
- file locking to prevent running the same program twice at the same time. RHEL 6 now has a native version of thisuniq_order_preserved.pl
- likeuniq
but you don't have to sort first and it preserves the orderingcolors.pl
- prints ASCII color code matrix of all foreground + background combinations showing the corresponding terminal escape codes to help with tuning your shellmatrix.pl
- prints a cool matrix of vertical scrolling characters using terminal trickswelcome.pl
- cool spinning welcome message greeting your username and showing last login time and user to put in your shell's.profile
(there is also a python version in my DevOps Python Tools repo)
Written to help clean up docs and SQL scripts.
I don't even bother writing capitalised SQL code any more I just run it through this via a vim shortcut (.vimrc).
sqlcase.pl
- capitalizes SQL code in files or stdin:*case.pl
- more specific language support for just about every database and SQL-like language out there plus a few more non-SQL languages like Neo4j Cypher and Docker's Dockerfiles:athenacase.pl
- AWS Athena SQLcqlcase.pl
- Cassandra CQLcyphercase.pl
- Neo4j Cypherdockercase.pl
- Docker (Dockerfiles)drillcase.pl
- Apache Drill SQLhivecase.pl
- Hive HQLimpalacase.pl
- Impala SQLinfluxcase.pl
- InfluxDB InfluxQLmssqlcase.pl
- Microsoft SQL Server SQLmysqlcase.pl
- MySQL SQLn1qlcase.pl
- Couchbase N1QLoraclecase.pl
/plsqlcase.pl
- Oracle SQLpostgrescase.pl
/pgsqlcase.pl
- PostgreSQL SQLpigcase.pl
- Pig Latinprestocase.pl
- Presto SQLredshiftcase..pl
- AWS Redshift SQLsnowflakecase..pl
- Snowflake SQL
watch_url.pl
- watches a given url, outputting status code and optionally selected output- Useful for debugging web farms behind load balancers and seeing the distribution to different servers
- Tip: set a /hostname handler to return which server you're hitting for each request in real-time
- I also use this a ping replacement to google.com to check internet networking in environments where everything except HTTP traffic is blocked
watch_nginx_stats.pl
- watches nginx stats via theHttpStubStatusModule
module
solr_cli.pl
- Solr CLI tool for fast and easy Solr / SolrCloud administration. Supports optional environment variables to minimize --switches (can be set permanently insolr/solr-env.sh
). Uses the Solr Cores and Collections APIs, makes Solr administration a lot easier
ambari_freeipa_kerberos_setup.pl
- Automates Hadoop Ambari cluster security Kerberos setup of FreeIPA principals and keytab distribution to the cluster nodeshadoop_hdfs_file_age_out.pl
- prints or removes all Hadoop HDFS files in a given directory tree older than a specified agehadoop_hdfs_snapshot_age_out.pl
- prints or removes Hadoop HDFS snapshots older than a given age or matching a given regex patternhbase_flush_tables.sh
- flushes all or selected HBase tables (useful when bulk loading OpenTSDB with Durability.SKIP_WAL) (there is also a Python version of this in my DevOps Python Tools repo)hive_to_elasticsearch.pl
- bulk indexes structured Hive tables in Hadoop to Elasticsearch clusters - includes support for Kerberos, Hive partitioned tables with selected partitions, selected columns, index creation with configurable sharding, index aliasing and optimizationhive_table_print_null_columns.pl
- finds Hive columns with all NULLs (see newer versions in DevOps Python tools repo for HiveServer2 and Impala)hive_table_count_rows_with_nulls.pl
- counts number of rows containing NULLs in any fieldpentaho_backup.pl
- script to back up the local Pentaho BA or DI Serveribm_bigsheets_config_git.pl
- revision controls IBM BigSheets configurations from API to Gitdatameer_config_git.pl
- revision controls Datameer configurations from API to Githadoop_config_diff.pl
- tool to diff configs between Hadoop clusters XML from files or live HTTP config endpoints
The make
command will initialize my library submodule and use sudo
to install the required system packages and CPAN
modules. If you want more control over what is installed you must follow the
Manual Setup section instead.
The automated build will use 'sudo' to install required Perl CPAN libraries to the system unless running as root or it
detects being inside Perlbrew. If you want to install some of the common Perl libraries such as Net::DNS
and LWP::*
using your OS packages instead of installing from CPAN then follow the Manual Build section below.
Enter the tools directory and run git submodule init and git submodule update to fetch my library repo and then install the CPAN modules as mentioned further down:
git clone https://github.com/HariSekhon/DevOps-Perl-tools perl-tools
cd tools
git submodule update --init
Then proceed to install the CPAN modules below by hand.
Install the following CPAN modules using the cpan command, using sudo
if you're not root:
sudo cpan JSON LWP::Simple LWP::UserAgent Term::ReadKey Text::Unidecode Time::HiRes XML::LibXML XML::Validate ...
The full list of CPAN modules is in setup/cpan-requirements.txt
.
You can install the entire list of cpan requirements like so:
sudo cpan $(sed 's/#.*//' < setup/cpan-requirements.txt)
You're now ready to use these programs.
Download the Tools and Lib git repos as zip files:
https://github.com/HariSekhon/DevOps-Perl-tools/archive/master.zip
https://github.com/HariSekhon/lib/archive/master.zip
Unzip both and move Lib to the lib
folder under Tools.
unzip devops-perl-tools-master.zip
unzip lib-master.zip
mv -v devops-perl-tools-master perl-tools
mv -v lib-master lib
mv -vf lib perl-tools/
Proceed to install CPAN modules for whichever programs you want to use using your standard procedure - usually an internal mirror or proxy server to CPAN, or rpms / debs (some libraries are packaged by Linux distributions).
All CPAN modules are listed in the setup/cpan-requirements.txt
file.
Strict validations include host/domain/FQDNs using TLDs which are populated from the official IANA list. This is done
via my Lib submodule - see there for details on configuring to permit custom TLDs
like .local
, .intranet
, .vm
, .cloud
etc. (all already included in there because they're common across companies
internal environments).
Run make update
. This will git pull and then git submodule update which is necessary to pick up corresponding library
updates.
If you update often and want to just quickly git pull + submodule update but skip rebuilding all those dependencies each
time then run make update-no-recompile
(will miss new library dependencies - do full make update
if you encounter
issues).
Continuous Integration is run on this repo with tests for success and failure scenarios:
- unit tests for the custom supporting perl library
- integration tests of the top level programs using the libraries for things like option parsing
- functional tests for the top level programs using local test data and Docker containers
To trigger all tests run:
make test
which will start with the underlying libraries, then move on to top level integration tests and functional tests using docker containers if docker is available.
Patches, improvements and even general feedback are welcome in the form of GitHub pull requests and issue tickets.
You might also be interested in the following really nice Jupyter notebook for HDFS space analysis created by another Hortonworks guy Jonas Straub:
https://github.com/mr-jstraub/HDFSQuota/blob/master/HDFSQuota.ipynb
The rest of my original source repos are here.
Pre-built Docker images are available on my DockerHub.