automated oracle java rpm downloads

grab the latest oracle java rpms

mkdir -p /var/lib/pulp/java-downloads
cd /var/lib/pulp/java-downloads

# JDK 8
curl -Lk --header "Cookie: oraclelicense=accept-securebackup-cookie" "" | grep 'linux-x64.rpm' | sed 's/.*filepath":"\([^"]*\)".*/\1/g' | xargs -I{} curl -LkO --header "Cookie: oraclelicense=accept-securebackup-cookie" {}

# JDK 10
curl -Lk --header "Cookie: oraclelicense=accept-securebackup-cookie" "" | grep 'linux-x64_bin.rpm' | sed 's/.*filepath":"\([^"]*\)".*/\1/g' | xargs -I{} curl -LkO --header "Cookie: oraclelicense=accept-securebackup-cookie" {}

And add them to a local pulp repo

pulp-admin -u "admin" -p $password rpm repo uploads rpm -v --repo-id my-repo --dir /var/lib/pulp/java-downloads
pulp-admin -u "admin" -p $password rpm repo publish run --repo-id my-repo

Selinux NFS home directories

Note to self:

If you’re using an NFS mounted home directory on a machine with SELinux enforcing make sure you do:

setsebool -P use_nfs_home_dirs 1

I don’t know what else breaks without this, but key-based ssh authentication fails.

Latex add both appendices and annexes

I’m using the appendix package in a latex document to add appendices and have them in my table of contents. I’m also using the hyperref package to get links from the toc to the sections. I wanted to add a further ‘annexes’ part to the document.

This post gave an example of how to use the appendix package to add additional parts of the document with chapters starting from 1 again. It almost worked but in the toc the annex chapters were linked to the appendix chapters (so annex I was linked to appendix A etc). When I printed out the value of @currentHref (what hyperref uses to link to in the toc) in my annex chapters, it was listing them as appendix.A. If I did a renewcommand on theHchapter (hyperref’s counter) after the change to the definition of thechapter, I at least get appendix.I so the roman numerals bit is working. I can’t for the life of me figure out where the ‘appendix’ prefix is coming from as changed the values of appendixname, appendixpagename and appendixtocname. In the end, I just gave up and added an additional \annexname in theHchapter definition. @currentHref ends up as appendix.Annex.I, but at least it’s unique so the links work in the toc. Pretty sure I’m missing something obvious, but at least this works for now:

% Create Roman Numeral Labelled Annexes
\makeatletter % treat @ as a letter instead of a control word.

and the in the document, something like:



Big Data in Mental Health Symposium – Live Stream (23/07/2014)

Dockerised BRAT annotation tool

Been playing with Docker this week. First attempt is a dockerized version of the brat annotation tool

Dockerfile and config bits on github:

Image on dockerhub, so you can just run with:

docker run -d -p 8000:80\

Selinux colouring book!


max file limits on boot2docker

Am trying to run apache2 on an ubuntu-flavoured docker container using boot2docker on OSX and I’m hitting a problem:

# service apache2 start
* Starting web server apache2 /usr/sbin/apache2ctl: 87: ulimit: error setting limit (Operation not permitted)
Setting ulimit failed. See README.Debian for more information.

A ulimit -n on the container says 1024 and trying to set it any higher fails. This is because it’s a limit coming from the host (the boot2docker vm)

$ boot2docker ssh

$ ulimit -n

We can change this in the boot2docker vm as the physical host (my macbook) has higher limits:

$ boot2docker ssh

$ sudo su
$ ulimit -n 8192
$ ulimit -n

ulimit only changes the setting for the current shell and processes started by it, so as soon as you drop back to a regular user

$ exit
$ ulimit -n
$ 1024

boot2docker uses a stripped down linux flavour based on tinycore. This doesn’t use PAM, so it doesn’t have the /etc/security/limits.conf file which would normally be used to set global limits.

The only solution I could come up with is to add a call to ulimit in the docker init script on the boot2docker machine:

vi /etc/init.d/docker

ulimit -n 8192

start() {
mkdir -p "$DOCKER_DIR"

... etc ...

Then to restart the docker daemon:

sudo /etc/init.d/docker restart

This change is only temporary though. If you want to add it to the boot2docker iso permanently you could always build your own iso: