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“phlpwcspweb3” is found at the “Amazon Web Services – Tagging Best Practices“
From what I can decode from “phlpwcspweb3” this is something related to web, and probably there are at least 3 instances of that kind.
According to AWS this should be meaningful hostname.
If you have decoded this you probably do not need to read further….
If you get
VBoxManage: error: The specified string / bytes buffer was to small. Specify a larger one and retry. (VERR_CFGM_NOT_ENOUGH_SPACE)
This means that the virtual machine needs a shorter name for the VM.
---
driver:
name: vagrant
customize:
name: pdcsmb
memory: 4144
cpus: 4
network:
# - ["forwarded_port", {guest: 3000, host: 3000}]
# - ["private_network", {ip: "192.168.33.33"}]
Bonus tip:
If you get
No live threads left. Deadlock?
Then remove all gems and reinstall chefdk.
When you have to export the comments from the database you can use this short snippet to get the schema as markup.
content = ""
database_name = "DATABASE_NAME"
ActiveRecord::Base.connection.tables.each do |table_name|
content << "h5. #{table_name}\n"
rows = ActiveRecord::Base.connection.execute("SELECT table_comment
FROM INFORMATION_SCHEMA.TABLES
WHERE table_schema='#{database_name}'
AND table_name='#{table_name}';");
puts rows.to_a.inspect
content << rows.to_a.first.first << "\n"
rows = ActiveRecord::Base.connection.execute("select table_name, column_name, DATA_TYPE, column_comment from INFORMATION_SCHEMA.COLUMNS where 1 AND TABLE_SCHEMA='#{database_name}' AND TABLE_NAME = '#{table_name}'")
rows.each(:as => :hash) do |row|
puts row.inspect
j = [ row["column_name"], row["DATA_TYPE"], row["column_comment"] ]
content << "|#{j.join('|')}|\n"
end
end; ''
puts content
The output should be something like
Table name
table description
column name, type, description
….. the next table
Berksfile
source 'https://supermarket.chef.io' metadata group :test do cookbook 'company_firewall', path: "../company_firewall" cookbook 'company_nginx', path: "../company_nginx" cookbook 'company', path: "../company" cookbook 'data-incoming', path: "../data-incoming" cookbook 'aws', path: "../aws" end
metadata.rb
name 'data-listener' maintainer 'Company' maintainer_email 'sd@company.com' license 'All rights reserved' description 'Installs/Configures data-listener' long_description IO.read(File.join(File.dirname(__FILE__), 'README.md')) version '0.2.32' depends 'sysctl', '~> 1.0.5' depends 'copany_firewall' depends 'company_nginx' depends 'aws'
remove the doublicate file from /etc/mdadm/mdadm.conf
cp mdadm.conf mdadm.conf.backup
grep -v "2 UUIDsomehing..." mdadm.conf.backup > mdadm.conf
Make sure the raid is up
mdadm --assemble --scan
Load the lvm volumes
lvm vgchange -ay
- -a – activate
- -y – complete
exit to try the changes
$(initramfs) exit
Now you system will boot
Making the changes permanent
Fix the /etc/mdadm/mdadm.conf file by removing the duplicate definition.
update-initramfs -u -k all
If you are still in initramfs busybox
mkdir /target
mount /dev/md1 /target
mount -o bind /dev /target/dev
mount -o bind /proc /target/proc
mount -o bind /sys /target/sys
mount -o bind /dev/pts /target/dev/pts
chroot /target /bin/bash
Cheat
mdadm –detail /dev/md0 mdadm –detail /dev/md1
mdadm –detail –scan > /etc/mdadm/mdadm.conf
Stop an array & assemble array mdadm –stop /dev/md1
mdadm –assemble /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 mdadm –assemble /dev/md1 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
Why Rails scaffold doesn’t work
The need to write a replacement of the Rails scaffold was because the build in one in Ruby on Rails:
- Does not support namespaces on the controllers and the models it generates funny paths in the views and/or controllers
- The native way to extend the Rails scaffold was changed frequently I have to spend hours tracing github issues
- It uses the ugly scaffold.css and it generates it all the time breaking my styles
- Does some freaky copy/paste optimizations in the controller to get the model. Scaffold should be a starting point from where with few deletes or add few lines of codes to make a usable screen.
The new approach
With scaffold_pico you can create your own pretty administration in a second.
- No learning curve – if you know Rails you know it.
- No 3rd party gems slowing your development/production startup times.
- Clean code
- Supports namespaces in the models and the controllers
There is also some sugar. With the pico_scaffold you can generate from the beginning fabricators and take care of N+1 by specifying joins/includes clauses. There is separation of the fields for index and editing. There is a search – almost every screen now days has search.
Supports Zurb Foundation, Materializecss CSS frameworks
Here is the github: https://github.com/gudata/scaffold_pico
There is no option to provide the net as param while building the docker images.
So the container doesn’t have internet from inside.
and is common to get this kind of errors
Running in NNNNNNNNN Err http://http.debian.net wheezy Release.gpg Could not resolve 'http.debian.net'
One (stupid) solution is to put in the Docker file
RUN echo "nameserver 8.8.8.8" > /etc/resolv.conf; cat /etc/resolv.conf
Another is to help Docker with the networking.
Here is a solution is pointed here
# Forward chain between docker0 and eth0 iptables -A FORWARD -i docker0 -o eth0 -j ACCEPT iptables -A FORWARD -i eth0 -o docker0 -j ACCEPT
# IPv6 chain if needed ip6tables -A FORWARD -i docker0 -o eth0 -j ACCEPT ip6tables -A FORWARD -i eth0 -o docker0 -j ACCEPT
And also to configure docker to use a dns server as pointed here
Docker official doc gives instruments to Configure a DNS server for use by Docker
Open the /etc/default/docker file for editing.
$ sudo nano /etc/default/docker
Add a setting for Docker.
DOCKER_OPTS="--dns 8.8.8.8"
Replace 8.8.8.8 with a local DNS server such as 192.168.1.1. You can also specify multiple DNS servers. Separated them with spaces, for example:
–dns 8.8.8.8 –dns 192.168.1.1
Warning: If you’re doing this on a laptop which connects to various networks, make sure to choose a public DNS server.
ps: nm-tool can be used to check local host DNS server
Save and close the file.
Restart the Docker daemon.
$ sudo restart docker
This script will activate gnome-terminal when you press INSERT (the key right to backspace) and will hide it when pressed again.
Using this script is better than tilda or guake or whatever because you can resize the terminal. You can clean the terminal and have all goods you have in normal terminal.
To install it under lubuntu/lxde open ~/config/openbox/lubuntu-rc.xml and add
https://gist.github.com/gudata/4065ad9bb1fd6d82933b
Here is the code for the riseterminal.sh
#/bin/bash
XDO=/usr/bin/xdotool
#TERMINAL_ID=`$XDO search --name Terminal | /usr/bin/tail -1`
raise_or_fall () {
TERMINAL_ID=$($XDO search --class gnome-terminal | /usr/bin/tail -1)
CURRENT_WINDOW_ID=`$XDO getwindowfocus`
WIDS=`$XDO search --onlyvisible --class gnome-terminal`
if [ "$CURRENT_WINDOW_ID" -eq "$WIDS" ]
then
# zenity --question --text="down"
$XDO windowminimize $TERMINAL_ID
else
# zenity --question --text="up"
# $XDO windowraise $TERMINAL_ID
# $XDO windowfocus --sync $TERMINAL_ID
$XDO windowactivate $TERMINAL_ID
fi
}
if `ps aux | grep "[g]nome-terminal" > /dev/null`
then
raise_or_fall
else
gnome-terminal &
fi
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