Author Archives: derak

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PHP Warning: PHP Startup: Unable to load dynamic library ‘sodium.so’

When installing php 7.2 on CentOS using RedHat Software Collections; your getting an error from php like:

PHP Warning:  PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /opt/rh/rh-php72/root/usr/lib64/php/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /opt/rh/rh-php72/root/usr/lib64/php/modules/sodium.so.so (/opt/rh/rh-php72/root/usr/lib64/php/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

This is a library conflict. Yum installed the wrong thing.
Lets have a look at this package:

(rh-mysql56,httpd24,rh-php72) [[email protected]]# yum deplist sclo-php72-php-sodium.x86_64
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.jaleco.com
 * epel: mirror.compevo.com
 * extras: centos-distro.1gservers.com
 * updates: repos.dfw.quadranet.com
package: sclo-php72-php-sodium.x86_64 7.2.12-1.el7
  dependency: libc.so.6(GLIBC_2.4)(64bit)
   provider: glibc.x86_64 2.17-260.el7_6.5
  dependency: libsodium.so.23()(64bit)
   provider: sclo-cassandra3-libsodium.x86_64 1.0.15-2.el7
   provider: libsodium.x86_64 1.0.17-1.el7
  dependency: rh-php72-php(api) = 20170718-64
   provider: rh-php72-php-common.x86_64 7.2.10-3.el7
  dependency: rh-php72-php(zend-abi) = 20170718-64
   provider: rh-php72-php-common.x86_64 7.2.10-3.el7
  dependency: rh-php72-runtime
   provider: rh-php72-runtime.x86_64 1-2.el7
  dependency: rtld(GNU_HASH)
   provider: glibc.x86_64 2.17-260.el7_6.5
   provider: glibc.i686 2.17-260.el7_6.5

Notice the libsodium library has two providers. This means that yum thinks either of these can satisfy the requirements; and in this case; it didn’t choose a compatible library. We’ll need to remove the sclo-cassandra3-libsodium library and manually install the one we want.

[[email protected]]# yum remove sclo-cassandra3-libsodium.x86_64
Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package sclo-cassandra3-libsodium.x86_64 0:1.0.15-2.el7 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================
 Package                                       Arch                       Version                           Repository                             Size
========================================================================================================================================================
Removing:
 sclo-cassandra3-libsodium                     x86_64                     1.0.15-2.el7                      @centos-sclo-sclo                     348 k

Transaction Summary
========================================================================================================================================================
Remove  1 Package

Installed size: 348 k
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Erasing    : sclo-cassandra3-libsodium-1.0.15-2.el7.x86_64                                                                                        1/1
  Verifying  : sclo-cassandra3-libsodium-1.0.15-2.el7.x86_64                                                                                        1/1

Removed:
  sclo-cassandra3-libsodium.x86_64 0:1.0.15-2.el7

Complete!

Now install the correct library

[[email protected]]# yum install libsodium.x86_64
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.jaleco.com
 * epel: mirror.compevo.com
 * extras: centos-distro.1gservers.com
 * updates: repos.dfw.quadranet.com
Resolving Dependencies
--> Running transaction check
---> Package libsodium.x86_64 0:1.0.17-1.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================
 Package                              Arch                              Version                                   Repository                       Size
========================================================================================================================================================
Installing:
 libsodium                            x86_64                            1.0.17-1.el7                              epel                            144 k

Transaction Summary
========================================================================================================================================================
Install  1 Package

Total download size: 144 k
Installed size: 344 k
Is this ok [y/d/N]: y
Downloading packages:
libsodium-1.0.17-1.el7.x86_64.rpm                                                                                                | 144 kB  00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : libsodium-1.0.17-1.el7.x86_64                                                                                                        1/1
  Verifying  : libsodium-1.0.17-1.el7.x86_64                                                                                                        1/1

Installed:
  libsodium.x86_64 0:1.0.17-1.el7

Complete!

Now lets test our install

[[email protected]]# php -i | grep sodium
/etc/opt/rh/rh-php72/php.d/20-sodium.ini,
sodium
sodium support => enabled
libsodium headers version => 1.0.17
libsodium library version => 1.0.17

Success!

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Phantom changes in git

I recently switched back to windows as my primary development system and encountered some weirdness with git.

My projects were showing lots of changed files but after inspecting the files for changes, there were none.

Git status on windows is sensitive to changes in file mode (permissions) and line endings (CR/LF).

Like most things in git, this behavior is configurable.

git config core.fileMode false

This lets git ignore those file mode changes and will let you get back to work.

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Moving from gitolite to gogs

Problem: You have a ton of git repositories in gitolite and you’d like to switch to the github-esq gui provided by gogs.

Gogs is super easy to get setup and has thoughtfully added tools which make it useful for a private intranet type setup. It has not however come up with a great way of mass-importing git repositories from another tool.

The web interface include a “migration” tool which can be completed one at a time. I had 150 git repos to migrate so I added a repo and then polked at the database

Gogs also uses bare repositories just like gitolite. Loading them into gogs is as easy as rsync’ing them into the gogs-repo directory and adding some rows to the gogs database so gogs knows how to administer them.

I made a script to help me with that task. Note I’m using mysql as my database and my repos default to private.

With this, it took about a second to import all these repos. I did find one other person who had batch imported repos and chose to do it with curl but I couldn’t get it to work. All in all, it took about 4 days to figure out how to get gogs setup and get all the repos into it. Hopefully this script makes that process much quicker for you.

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Debugging git push/clone issues with ip6

Problem: You're doing "git push" or "git clone" and it takes forever to connect.

This could be a lot of things. In my case it was a firewall issue on a dual stack server hosting my repository.

How can you tell?

git config -global core.sshCommand "ssh -vvv"

This enabled verbose mode for SSH. Now try to clone your repo and you'll get a lot more information.

In my case, it was a DNS resolution problem.

[email protected]:test $ git pull origin master
OpenSSH_7.4p1, LibreSSL 2.5.0
debug1: Reading configuration data /Users/dkilgo/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolving "test.me" port 49001
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to test.me [xxxx:xx:xxxx:x:xxx:xx:xx:xxx] port 49001.
debug1: connect to address xxxx:xx:xxxx:x:xxxx:xx:xx:xxx port 49001: Operation timed out
debug1: Connecting to test.me [000.00.00.000] port 49001.
debug1: Connection established.
….

I got a timeout on the ip6 address. The SSH port on this dual-stack server is being blocked. Once it fails, git will try ip4 which works.

Since I don't have control over the network here, I can work around this issue with ssh's config.

How do I fix this without breaking everything else that uses ip6?

You could just disable ip6 in your network settings. In 2017, that's not the most practical solution. We can do that for just one host in our SSH settings and get the same effect.

Edit your ~/.ssh/conf and add 

Host test.me
AddressFamily inet

This tells ssh to only use ip4 for this host. This makes my one buggy host happy and doesn't mess with the rest of the internet. If you discover ip4 is the problem for you and ip6 works, set that to "inet6" instead. 

Don't forget to turn off that verbose logging we turned on earlier. 

git config -global core.sshCommand "ssh"

 

If this didn't fix your issue, try git's debug options.

GIT_CURL_VERBOSE=1 GIT_TRACE=1 git pull origin master

The GIT_TRACE environment var makes git output more debug info during any operation. Setting it like this means it will only impact this command.

If you want this to work for any user or app, you can export that var. 

EXPORT GIT_TRACE=1

and any call to git will output debug info, even from a tool like source tree or git embeded in an IDE. More info on git environment variables.