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cf cloudera-os-build hadoop-os-build master modules openstack-os-build release/elefante/cloudera-os-build release/elefante/hadoop-os-build release/elefante/master release/elefante/openstack-os-build release/essex-hack/hadoop-os-build release/essex-hack/master release/essex-hack/openstack-build release/essex-hack/openstack-os-build release/fledermaus/master release/fledermaus/openstack-os-build release/fred/cloudera-os-build release/fred/hadoop-os-build release/fred/master release/fred/openstack-os-build release/rails3anddb/cloudera-os-build release/rails3anddb/hadoop-os-build release/rails3anddb/master release/rails3anddb/openstack-os-build ui v1.2.1-openstack vlowther-barclamp-pkg-metadata vlowther-flattened-provisioner vlowther-ubuntu-bootif
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This file documents how barclamps are packaged for installation and distribution. All barclamps that the Crowbar build process creates are packaged into tarballs with the following layout: <barclamp name>/ is the name of the barclamp crowbar.yml contains required barclamp metadata. More detailed information on what this file contains can be found in: /opt/dell/barclamp_model on a freshly installed admin node. sha1sums contains SHA1 checksums of everything in the barclamp tarball. barclamp_install.rb uses this information to ensure that the tarball was not corrupted and that it will not overwrite local changes when installing a different barclamp revision. bin/ contains binaries for /opt/dell/bin. These are installed bu barclamp_install.rb. chef/ contains chef cookbooks, roles, and data bags. See the barclamp model for more information on these directories. smoketest/ contains scripts for the smoketest framework. See crowbar/test_framework/README.testing for mor info. cache/ contains the files and packages required by this barclamp files/ contains raw files that the barclamp needs. Examples are things like .ami files, raw source packages, etc. Files and paths under this directory will be merged into /tftpboot/files, and will wind up being served from http://<admin ip>:8091/files/ As a special case, the install process will unpack the .rpm files from anything that looks like an Oracle java install package and place them into /tftpboot/<os-token>/crowbar-extra/oracle-java gems/ contains gems that the barclamp requires. Any gems will be symlinked into /tftpboot/gemsite/gems. The install process on the admin node arranges for /tftpboot/gemsite to be served as a Rubygems repository through http://<admin ip>:3001/, and all nodes are configured to use that URL as their primary Gem repository. <os-token>/ is a name like ubuntu-10.10, centos-5.7, etc. Ideally, there will be one of these for each OS the barclamp supports. pkgs/ contains all the <os-token> packages that the barclamp needs. /tftpboot/<os-token>/crowbar-extra/<barclamp name> will be a symlink to this directory, so this directory should follow the layout conventions appropriate for whatever package manager is used by <os-token>. Any packages in this directory will be installable on all the nodes. Creating a barclamp tarball: The crowbar repository has a package_barclamp.sh script to help automate the process of creating a barclamp tarball. That script makes the following assumptions: 1: The barclamp you wish to create is checked out under the Crowbar git repository at barclamps/<barclamp name>. 2: The packages, files, and gems that your barclamp needs are present in the crowbar build cache and were fetched by the build process. The package_barclamp.sh script takes the following options: * --destdir <directory> If this option is present, package_barclamp will save the barclamp tarballs it creates in <directory>. If it is not present, it will save them in the current directory. * --os <os-token> If this option is present, package_barclamp will only stage OS specific packages for <os-token> along with the OS-independent files and gems. If it is not present, package_barclamps.sh will try to package all the OS specific packages it finds in the build cache. * <barclamp names> The names of the barclamps you want to package. Installing a barclamp: Once you have a Crowbar admin node up and running, you can install new or updated barclamps using barclamp_install.rb. barclamp_install.rb can install multiple barclamps from multiple different sources at the same time, and it always installs barclamps in priority order as defined in the crowbar.yml for each barclamp. barclamp_install.rb knows about 3 types of sources: * A path to a barclamp tarball. If you pass a path to a barclamp tarball, barclamp_install.rb will extract the tarball into a temporary directory and verify that the previous install (if any) is pristine before continuing. * A path to a directory containing a valid crowbar.yml. If you pass a directory outside of /opt/dell/barclamps, barclamp_install.rb will check to see if the current install is pristine before allowing the install to continue. * The name of a barclamp already installed in /opt/dell/barclamps. If this is the case, barclamp_install.rb will assume that you are reuploading an already installed barclamp, and will not check for pristineness. You can override the pristineness check in any of the above install methods by passing the --force switch to barclamp_install.rb. After the pristineness check passes (or is overridden), the installer will copy the updated barclamp contents into /opt/dell/barclamps/<barclamp name>, merge the newer crowbar framework bits, update the chef components, and add new files and symlinks (as appropriate) to the cache directories. Once the new barclamp is installed, you will have to manually update the metadata for the gem and OS package repositories -- barclamp_install.rb is not smart enough to do it for you. The steps for that are: * find -L /tftpboot -type l -print0 |xargs -0 rm This will delete any dangling symlinks that may be laying around. * cd /tftpboot/gemsite; gem generate_index This will recreate the metadata that gem uses to install the gems. * cd /tftpboot/<os-token>/crowbar-extra <os-token> is the OS you want to regenerate the package metadata for. On RPM based distros, run: # createrepo -d -q . # knife ssh 'node:*' yum clean expire-cache On .deb based distros, run: # dpkg-scanpackages . |gzip -9 >Packages.gz # knife ssh 'node:*' apt-get update