Author:
erics, Posted on Thursday, May 14th, 2020 at 11:14:20am
Recently, I had a list of command-line options in a table, and my browser was automatically inserting a line-break in-between the hyphen and the option character.
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<td> <code class="option">--help, -h</code> </td> |
To prevent this, I simply added a little CSS:
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<style> code.option { white-space: nowrap; } </style> |
NOTE: Never use the
HTML directive – it is obsolete!
Categories: How-To's, Technology Tags: break, howto, line break, nobr, Prevent, tips | 
No comments
Author:
erics, Posted on Monday, May 11th, 2020 at 1:28:22pm
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add_filter( 'user_meta_admin_email_recipient', 'changeAdminEmails' ); function changeAdminEmails( $emails ) { return array( 'youremailtarget1@yourdomain.com', 'youremailtarget2@yourdomain.com' ); } |
Categories: How-To's, Technology Tags: admin, Admin Email, Change, Destination, Edit, Email, howto, meta, modify, Notification, Pro, Target, tips, User, user-meta, user-meta-pro, WordPress, WP, WP User Meta | No comments
Author:
erics, Posted on Saturday, May 9th, 2020 at 10:59:02am
Categories: Weather Tags: May, Snow | No comments
Author:
erics, Posted on Thursday, May 7th, 2020 at 3:17:16pm
I wanted to empty the time series data cache from the Prometheus server to start clean.
The best practice is to use the administrative HTTP API via curl. For example, to clear all data for job mysqld as defined in the prometheus.yml configuration file:
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curl -X POST -g 'http://localhost:9090/api/v1/admin/tsdb/delete_series?match[]={job="mysqld"}' |
If you want to delete ALL data from Prometheus, then execute:
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curl -X POST -g 'http://localhost:9090/api/v1/admin/tsdb/delete_series?match[]={__name__=~".+"}' |
Since Prometheus keeps deleted data for 15 days by default, you may want to speed up that process by executing:
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curl -X POST -g 'http://localhost:9090/api/v1/admin/tsdb/clean_tombstones' |
You can change the default of 15 days by setting the --storage.tsdb.retention option.
NOTE: The administrative HTTP API is disabled by default!
To enable it, add the --web.enable-admin-api argument to the prometheus commend at startup.
For example, this is an excerpt from my /etc/init.d/prometheus service script:
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... PROGNAME=prometheus PROG=/usr/local/prometheus/$PROGNAME USER=root LOGFILE=/var/log/prometheus.log DATADIR=/volumes/data/prometheus LOCKFILE=/var/run/$PROGNAME.pid CONFIG_FILE=/usr/local/prometheus/prometheus.yml start() { echo -n "Starting $PROGNAME: " daemon --user $USER --pidfile="$LOCKFILE" "$PROG --config.file=$CONFIG_FILE --storage.tsdb.path=$DATADIR --storage.tsdb.retention=3d --web.enable-admin-api &>$LOGFILE &" echo $(pidofproc $PROGNAME) >$LOCKFILE echo } |
Credits:
Thanks to ShellHacks – https://www.shellhacks.com/prometheus-delete-time-series-metrics/
Categories: How-To's, Technology Tags: Cache, Clear, Curl, Delete, Empty, howto, Prom, Prometheus, Remove, tips | No comments
Author:
erics, Posted on Wednesday, May 6th, 2020 at 5:19:27pm
Categories: Home and Garden, Nature Tags: Hummingbird | No comments
Author:
erics, Posted on Wednesday, May 6th, 2020 at 12:43:43pm
I ran letsencrypt-auto renew and got the following error:
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root@prod06b:/etc/httpd/conf.d # /root/letsencrypt/letsencrypt-auto renew Error: couldn't get currently installed version for /opt/eff.org/certbot/venv/bin/letsencrypt: Traceback (most recent call last): File "/opt/eff.org/certbot/venv/bin/letsencrypt", line 7, in <module> from certbot.main import main File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/certbot/main.py", line 2, in <module> from certbot._internal import main as internal_main File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/certbot/_internal/main.py", line 10, in <module> import josepy as jose File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/josepy/__init__.py", line 41, in <module> from josepy.interfaces import JSONDeSerializable File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/josepy/interfaces.py", line 7, in <module> from josepy import errors, util File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/josepy/util.py", line 7, in <module> import OpenSSL File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module> from OpenSSL import crypto, SSL File "/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/OpenSSL/crypto.py", line 12, in <module> from cryptography import x509 ImportError: No module named cryptography |
The solution in this article gave me the answer:
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sudo rm -rf /opt/eff.org/* sudo pip install -U certbot sudo certbot renew --debug |
Turns out Python was old at version 2.7, so did the following also:
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sudo yum -y install python36 sudo alternatives --config python sudo pip install --upgrade pip |
Also had to change the cron job script to call certbot directly instead of letsencrypt-auto :
vi /root/letsencrypt-cron.sh
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#!/bin/sh # # letsencrypt-cron.sh # #OLD: if ! /root/letsencrypt/letsencrypt-auto renew > /var/log/letsencrypt/renew.log 2>&1 ; then #NEW: if ! /usr/bin/certbot renew > /var/log/letsencrypt/renew.log 2>&1 ; then echo Automated renewal failed: cat /var/log/letsencrypt/renew.log exit 1 fi apachectl graceful |
Categories: How-To's, Technology Tags: AWS, AWS Linux, cert, Certbot, howto, Install, Linux, pip, Python, Renew, ssl, tips, upgrade, Yum | No comments
Author:
erics, Posted on Friday, April 24th, 2020 at 9:25:32am
I needed to take a directory which had already run git init and needed to create the remote origin on our main internal git server.
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ssh git@gitserver cd ~git mkdir myrepo cd myrepo git --bare init exit cd myproject git push ssh://git@gitserver/home/git/myrepo +master:master cd .. mv myproject myproject.orig git clone ssh://git@gitserver/home/git/myrepo myproject cd myproject |
Categories: How-To's, Technology Tags: | No comments
Author:
erics, Posted on Sunday, April 5th, 2020 at 10:56:58am
Decided to go for it and dive into the world of the WordPress block editor based on the improvements in version 5.4 –
First, the upgrade went smoothly.
Second, switching to the new block editor was easy.
Third, making this post seems pretty painless. I disabled full-screen mode because I simply don’t like it ;-}
The post preview worked well, too.
Nice job, WP Team!
Categories: Technology Tags: upgrade, WordPress, Wordpress 5.4 | No comments
Author:
erics, Posted on Sunday, April 5th, 2020 at 8:49:16am
As a non-root user:
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/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)" brew install cmake brew install openssl brew install mysql@5.6 brew services start mysql@5.6 brew link mysql@5.6 --force mysql |
Make sure your PATH contains /usr/local/bin
Categories: How-To's, Technology Tags: /usr/local, /usr/local/bin, 5.6, apple, Brew, cmake, Homebrew, howto, Install, Launchd, Link, MacOS, macosx, mysql, MySQL 5.6, mysql@5.6, openssl, Services, tips | No comments
Author:
erics, Posted on Friday, March 27th, 2020 at 11:30:41am
- Quit Skype
- From your Applications folder, drag the Skype icon into the Trash
- In the top Finder menu, select Go -> Go to Folder… or press Shift-Command-G to bring up the “Go to the folder” prompt
- Open
~/Library/Application Support and drag “Skype Helper” to the Trash
- Open
~/Library/Application Support/Microsoft and drag “Skype for Desktop” to the Trash.
- Open
~/Library/Preferences and drag both com.skype.skype.plist and com.skype.skype.Helper.plist to TrashÂ
- Right or Ctrl-click Trash and select Empty Trash
Categories: How-To's, Technology Tags: apple, Delete, delete skype, howto, MacOS, Remove, remove skype, Skype, skype for mac, tips | No comments
