mirror of
https://github.com/dokku/dokku.git
synced 2025-12-16 12:07:45 +01:00
256 lines
8.3 KiB
Bash
Executable File
256 lines
8.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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[[ $TRACE ]] && set -x
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# A script to bootstrap dokku.
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# It expects to be run on Ubuntu 16.04/18.04/20.04, or CentOS 7 via 'sudo'
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# If installing a tag higher than 0.3.13, it may install dokku via a package (so long as the package is higher than 0.3.13)
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# It checks out the dokku source code from Github into ~/dokku and then runs 'make install' from dokku source.
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# We wrap this whole script in functions, so that we won't execute
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# until the entire script is downloaded.
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# That's good because it prevents our output overlapping with wget's.
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# It also means that we can't run a partially downloaded script.
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SUPPORTED_VERSIONS="Debian [9, 10], CentOS [7], Ubuntu [16.04, 18.04, 20.04]"
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log-fail() {
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declare desc="log fail formatter"
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echo "$@" 1>&2
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exit 1
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}
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ensure-environment() {
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local FREE_MEMORY
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if [ ! $DOKKU_TAG ]; then
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echo "Preparing to install $DOKKU_REPO..."
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else
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echo "Preparing to install $DOKKU_TAG from $DOKKU_REPO..."
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fi
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hostname -f >/dev/null 2>&1 || {
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log-fail "This installation script requires that you have a hostname set for the instance. Please set a hostname for 127.0.0.1 in your /etc/hosts"
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}
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FREE_MEMORY=$(grep MemTotal /proc/meminfo | awk '{print $2}')
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if [[ "$FREE_MEMORY" -lt 1003600 ]]; then
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echo "For dokku to build containers, it is strongly suggested that you have 1024 megabytes or more of free memory"
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echo "If necessary, please consult this document to setup swap: http://dokku.viewdocs.io/dokku/getting-started/advanced-installation/#vms-with-less-than-1-gb-of-memory"
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fi
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}
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install-requirements() {
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echo "--> Ensuring we have the proper dependencies"
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case "$DOKKU_DISTRO" in
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debian)
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if ! dpkg -l | grep -q software-properties-common; then
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apt-get update -qq >/dev/null
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apt-get -qq -y install software-properties-common
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fi
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;;
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ubuntu)
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if ! dpkg -l | grep -q software-properties-common; then
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apt-get update -qq >/dev/null
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apt-get -qq -y install software-properties-common
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fi
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add-apt-repository universe >/dev/null
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apt-get update -qq >/dev/null
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;;
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esac
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}
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install-dokku() {
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if [[ -n $DOKKU_BRANCH ]]; then
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install-dokku-from-source "origin/$DOKKU_BRANCH"
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elif [[ -n $DOKKU_TAG ]]; then
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local DOKKU_SEMVER="${DOKKU_TAG//v/}"
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major=$(echo "$DOKKU_SEMVER" | awk '{split($0,a,"."); print a[1]}')
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minor=$(echo "$DOKKU_SEMVER" | awk '{split($0,a,"."); print a[2]}')
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patch=$(echo "$DOKKU_SEMVER" | awk '{split($0,a,"."); print a[3]}')
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use_plugin=false
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# 0.4.0 implemented a `plugin` plugin
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if [[ "$major" -eq "0" ]] && [[ "$minor" -ge "4" ]] && [[ "$patch" -ge "0" ]]; then
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use_plugin=true
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elif [[ "$major" -ge "1" ]]; then
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use_plugin=true
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fi
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# 0.3.13 was the first version with a debian package
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if [[ "$major" -eq "0" ]] && [[ "$minor" -eq "3" ]] && [[ "$patch" -ge "13" ]]; then
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install-dokku-from-package "$DOKKU_SEMVER"
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echo "--> Running post-install dependency installation"
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dokku plugins-install-dependencies
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elif [[ "$use_plugin" == "true" ]]; then
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install-dokku-from-package "$DOKKU_SEMVER"
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echo "--> Running post-install dependency installation"
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sudo -E dokku plugin:install-dependencies --core
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else
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install-dokku-from-source "$DOKKU_TAG"
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fi
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else
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install-dokku-from-package
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echo "--> Running post-install dependency installation"
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sudo -E dokku plugin:install-dependencies --core
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fi
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}
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install-dokku-from-source() {
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local DOKKU_CHECKOUT="$1"
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if ! command -v apt-get &>/dev/null; then
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log-fail "This installation script requires apt-get. For manual installation instructions, consult http://dokku.viewdocs.io/dokku/advanced-installation/"
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fi
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apt-get -qq -y install sudo git make software-properties-common
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cd /root
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if [[ ! -d /root/dokku ]]; then
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git clone "$DOKKU_REPO" /root/dokku
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fi
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cd /root/dokku
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git fetch origin
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[[ -n $DOKKU_CHECKOUT ]] && git checkout "$DOKKU_CHECKOUT"
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make install
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}
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install-dokku-from-package() {
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case "$DOKKU_DISTRO" in
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debian | ubuntu)
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install-dokku-from-deb-package "$@"
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;;
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centos | rhel)
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install-dokku-from-rpm-package "$@"
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;;
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*)
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log-fail "Unsupported Linux distribution. For manual installation instructions, consult http://dokku.viewdocs.io/dokku/advanced-installation/"
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;;
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esac
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}
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in-array() {
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declare desc="return true if value ($1) is in list (all other arguments)"
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local e
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for e in "${@:2}"; do
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[[ "$e" == "$1" ]] && return 0
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done
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return 1
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}
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install-dokku-from-deb-package() {
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local DOKKU_CHECKOUT="$1"
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local NO_INSTALL_RECOMMENDS=${DOKKU_NO_INSTALL_RECOMMENDS:=""}
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local OS_ID
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if ! in-array "$DOKKU_DISTRO_VERSION" "16.04" "18.04" "20.04" "9" "10"; then
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log-fail "Unsupported Linux distribution. Only the following versions are supported: $SUPPORTED_VERSIONS"
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fi
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if [[ -n $DOKKU_DOCKERFILE ]]; then
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NO_INSTALL_RECOMMENDS=" --no-install-recommends "
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fi
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echo "--> Initial apt-get update"
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apt-get update -qq >/dev/null
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apt-get -qq -y install apt-transport-https
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if ! command -v docker &>/dev/null; then
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echo "--> Installing docker"
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if uname -r | grep -q linode; then
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echo "--> NOTE: Using Linode? Docker may complain about missing AUFS support."
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echo " You can safely ignore this warning."
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echo " Installation will continue in 10 seconds."
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sleep 10
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fi
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export CHANNEL=stable
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wget -nv -O - https://get.docker.com/ | sh
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fi
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OS_ID="$(lsb_release -cs 2>/dev/null || echo "bionic")"
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if ! in-array "$DOKKU_DISTRO" "debian" "ubuntu"; then
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DOKKU_DISTRO="ubuntu"
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OS_ID="bionic"
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fi
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if [[ "$DOKKU_DISTRO" == "ubuntu" ]]; then
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OS_IDS=("xenial" "bionic" "focal")
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if ! in-array "$OS_ID" "${OS_IDS[@]}"; then
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OS_ID="bionic"
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fi
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elif [[ "$DOKKU_DISTRO" == "debian" ]]; then
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OS_IDS=("stretch" "buster")
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if ! in-array "$OS_ID" "${OS_IDS[@]}"; then
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OS_ID="buster"
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fi
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fi
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echo "--> Installing dokku"
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wget -nv -O - https://packagecloud.io/dokku/dokku/gpgkey | apt-key add -
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echo "deb https://packagecloud.io/dokku/dokku/$DOKKU_DISTRO/ $OS_ID main" | tee /etc/apt/sources.list.d/dokku.list
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apt-get update -qq >/dev/null
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[[ -n $DOKKU_VHOST_ENABLE ]] && echo "dokku dokku/vhost_enable boolean $DOKKU_VHOST_ENABLE" | sudo debconf-set-selections
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[[ -n $DOKKU_WEB_CONFIG ]] && echo "dokku dokku/web_config boolean $DOKKU_WEB_CONFIG" | sudo debconf-set-selections
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[[ -n $DOKKU_HOSTNAME ]] && echo "dokku dokku/hostname string $DOKKU_HOSTNAME" | sudo debconf-set-selections
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[[ -n $DOKKU_SKIP_KEY_FILE ]] && echo "dokku dokku/skip_key_file boolean $DOKKU_SKIP_KEY_FILE" | sudo debconf-set-selections
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[[ -n $DOKKU_KEY_FILE ]] && echo "dokku dokku/key_file string $DOKKU_KEY_FILE" | sudo debconf-set-selections
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[[ -n $DOKKU_NGINX_ENABLE ]] && echo "dokku dokku/nginx_enable string $DOKKU_NGINX_ENABLE" | sudo debconf-set-selections
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if [[ -n $DOKKU_CHECKOUT ]]; then
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# shellcheck disable=SC2086
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apt-get -qq -y $NO_INSTALL_RECOMMENDS install "dokku=$DOKKU_CHECKOUT"
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else
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# shellcheck disable=SC2086
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apt-get -qq -y $NO_INSTALL_RECOMMENDS install dokku
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fi
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}
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install-dokku-from-rpm-package() {
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local DOKKU_CHECKOUT="$1"
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if ! in-array "$DOKKU_DISTRO_VERSION" "7"; then
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log-fail "Unsupported Linux distribution. Only the following versions are supported: $SUPPORTED_VERSIONS"
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fi
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echo "--> Installing docker"
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curl -fsSL https://get.docker.com/ | sh
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echo "--> Installing epel for nginx packages to be available"
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yum install -y epel-release
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echo "--> Installing herokuish and dokku"
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curl -s https://packagecloud.io/install/repositories/dokku/dokku/script.rpm.sh | bash
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if [[ -n $DOKKU_CHECKOUT ]]; then
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yum -y install herokuish "dokku-$DOKKU_CHECKOUT"
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else
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yum -y install herokuish dokku
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fi
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echo "--> Enabling docker and nginx on system startup"
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systemctl enable docker
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systemctl enable nginx
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echo "--> Starting nginx"
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systemctl start nginx
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}
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main() {
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export DOKKU_DISTRO DOKKU_DISTRO_VERSION
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# shellcheck disable=SC1091
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DOKKU_DISTRO=$(. /etc/os-release && echo "$ID")
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# shellcheck disable=SC1091
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DOKKU_DISTRO_VERSION=$(. /etc/os-release && echo "$VERSION_ID")
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export DEBIAN_FRONTEND=noninteractive
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export DOKKU_REPO=${DOKKU_REPO:-"https://github.com/dokku/dokku.git"}
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ensure-environment
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install-requirements
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install-dokku
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}
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main "$@"
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