操作系统信息
ubuntu和centos系列的linux可以从/etc/os-release文件中获取，直接.或者source该文件，即可从环境变量中获取相关信息。
VERSION_ID 系统版本号
NAME 系统名称
PRETTY_NAME 更为完整的系统名称
以下为gitlab安装的便捷脚本：
#!/bin/bash
unknown_os ()
{
echo "Unfortunately, your operating system distribution and version are not supported by this script."
echo
echo "You can override the OS detection by setting os= and dist= prior to running this script."
echo "You can find a list of supported OSes and distributions on our website: https://packages.gitlab.com/docs#os_distro_version"
echo
echo "For example, to force CentOS 6: os=el dist=6 ./script.sh"
echo
echo "Please email support@packagecloud.io and let us know if you run into any issues."
exit 1
}
curl_check ()
{
echo "Checking for curl..."
if command -v curl > /dev/null; then
echo "Detected curl..."
else
echo "Installing curl..."
yum install -d0 -e0 -y curl
fi
}
detect_os ()
{
if [[ ( -z "${os}" ) && ( -z "${dist}" ) ]]; then
if [ -e /etc/os-release ]; then
. /etc/os-release
os=${ID}
if [ "${os}" = "poky" ]; then
dist=`echo ${VERSION_ID}`
elif [ "${os}" = "sles" ]; then
dist=`echo ${VERSION_ID}`
elif [ "${os}" = "opensuse" ]; then
dist=`echo ${VERSION_ID}`
elif [ "${os}" = "opensuse-leap" ]; then
os=opensuse
dist=`echo ${VERSION_ID}`
else
dist=`echo ${VERSION_ID} | awk -F '.' '{ print $1 }'`
fi
elif [ `which lsb_release 2>/dev/null` ]; then
# get major version (e.g. '5' or '6')
dist=`lsb_release -r | cut -f2 | awk -F '.' '{ print $1 }'`
# get os (e.g. 'centos', 'redhatenterpriseserver', etc)
os=`lsb_release -i | cut -f2 | awk '{ print tolower($1) }'`
elif [ -e /etc/oracle-release ]; then
dist=`cut -f5 --delimiter=' ' /etc/oracle-release | awk -F '.' '{ print $1 }'`
os='ol'
elif [ -e /etc/fedora-release ]; then
dist=`cut -f3 --delimiter=' ' /etc/fedora-release`
os='fedora'
elif [ -e /etc/redhat-release ]; then
os_hint=`cat /etc/redhat-release | awk '{ print tolower($1) }'`
if [ "${os_hint}" = "centos" ]; then
dist=`cat /etc/redhat-release | awk '{ print $3 }' | awk -F '.' '{ print $1 }'`
os='centos'
elif [ "${os_hint}" = "scientific" ]; then
dist=`cat /etc/redhat-release | awk '{ print $4 }' | awk -F '.' '{ print $1 }'`
os='scientific'
else
dist=`cat /etc/redhat-release | awk '{ print tolower($7) }' | cut -f1 --delimiter='.'`
os='redhatenterpriseserver'
fi
else
aws=`grep -q Amazon /etc/issue`
if [ "$?" = "0" ]; then
dist='6'
os='aws'
else
unknown_os
fi
fi
fi
if [[ ( -z "${os}" ) || ( -z "${dist}" ) ]]; then
unknown_os
fi
# remove whitespace from OS and dist name
os="${os// /}"
dist="${dist// /}"
echo "Detected operating system as ${os}/${dist}."
}
finalize_yum_repo ()
{
echo "Installing pygpgme to verify GPG signatures..."
yum install -y pygpgme --disablerepo='gitlab_gitlab-ce'
pypgpme_check=`rpm -qa | grep -qw pygpgme`
if [ "$?" != "0" ]; then
echo
echo "WARNING: "
echo "The pygpgme package could not be installed. This means GPG verification is not possible for any RPM installed on your system. "
echo "To fix this, add a repository with pygpgme. Usualy, the EPEL repository for your system will have this. "
echo "More information: https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F"
echo
# set the repo_gpgcheck option to 0
sed -i'' 's/repo_gpgcheck=1/repo_gpgcheck=0/' /etc/yum.repos.d/gitlab_gitlab-ce.repo
fi
echo "Installing yum-utils..."
yum install -y yum-utils --disablerepo='gitlab_gitlab-ce'
yum_utils_check=`rpm -qa | grep -qw yum-utils`
if [ "$?" != "0" ]; then
echo
echo "WARNING: "
echo "The yum-utils package could not be installed. This means you may not be able to install source RPMs or use other yum features."
echo
fi
echo "Generating yum cache for gitlab_gitlab-ce..."
yum -q makecache -y --disablerepo='*' --enablerepo='gitlab_gitlab-ce'
echo "Generating yum cache for gitlab_gitlab-ce-source..."
yum -q makecache -y --disablerepo='*' --enablerepo='gitlab_gitlab-ce-source'
}
finalize_zypper_repo ()
{
zypper --gpg-auto-import-keys refresh gitlab_gitlab-ce
zypper --gpg-auto-import-keys refresh gitlab_gitlab-ce-source
}
main ()
{
detect_os
curl_check
yum_repo_config_url="https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/config_file.repo?os=${os}&dist=${dist}&source=script"
if [ "${os}" = "sles" ] || [ "${os}" = "opensuse" ]; then
yum_repo_path=/etc/zypp/repos.d/gitlab_gitlab-ce.repo
else
yum_repo_path=/etc/yum.repos.d/gitlab_gitlab-ce.repo
fi
echo "Downloading repository file: ${yum_repo_config_url}"
curl -sSf "${yum_repo_config_url}" > $yum_repo_path
curl_exit_code=$?
if [ "$curl_exit_code" = "22" ]; then
echo
echo
echo -n "Unable to download repo config from: "
echo "${yum_repo_config_url}"
echo
echo "This usually happens if your operating system is not supported by "
echo "packagecloud.io, or this script's OS detection failed."
echo
echo "You can override the OS detection by setting os= and dist= prior to running this script."
echo "You can find a list of supported OSes and distributions on our website: https://packages.gitlab.com/docs#os_distro_version"
echo
echo "For example, to force CentOS 6: os=el dist=6 ./script.sh"
echo
echo "If you are running a supported OS, please email support@packagecloud.io and report this."
[ -e $yum_repo_path ] && rm $yum_repo_path
exit 1
elif [ "$curl_exit_code" = "35" -o "$curl_exit_code" = "60" ]; then
echo
echo "curl is unable to connect to packagecloud.io over TLS when running: "
echo " curl ${yum_repo_config_url}"
echo
echo "This is usually due to one of two things:"
echo
echo " 1.) Missing CA root certificates (make sure the ca-certificates package is installed)"
echo " 2.) An old version of libssl. Try upgrading libssl on your system to a more recent version"
echo
echo "Contact support@packagecloud.io with information about your system for help."
[ -e $yum_repo_path ] && rm $yum_repo_path
exit 1
elif [ "$curl_exit_code" -gt "0" ]; then
echo
echo "Unable to run: "
echo " curl ${yum_repo_config_url}"
echo
echo "Double check your curl installation and try again."
[ -e $yum_repo_path ] && rm $yum_repo_path
exit 1
else
echo "done."
fi
if [ "${os}" = "sles" ] || [ "${os}" = "opensuse" ]; then
finalize_zypper_repo
else
finalize_yum_repo
fi
echo
echo "The repository is setup! You can now install packages."
}
main
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