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#!/bin/bash
set -eo pipefail
[[ $TRACE ]] && set -x
readonly DOKKU_ROOT="${DOKKU_ROOT:-/home/dokku}"
readonly DOKKU_LIB_ROOT="${DOKKU_LIB_PATH:-/var/lib/dokku}"
readonly DOKKU_LOGS_DIR="${DOKKU_LOGS_DIR:-/var/log/dokku}"
call-sshcommand() {
if [[ -x /usr/bin/sshcommand ]]; then
/usr/bin/sshcommand "$@"
else
echo "Unable to find sshcommand binary" 1>&2
exit 1
fi
}
setup-user() {
echo "Setting up dokku user"
call-sshcommand create dokku /usr/bin/dokku
grep -i -E "^docker" /etc/group || groupadd docker
usermod -aG docker dokku
mkdir -p "${DOKKU_ROOT}/.ssh" "${DOKKU_ROOT}/.dokkurc"
touch "${DOKKU_ROOT}/.ssh/authorized_keys"
chown -R dokku:dokku "${DOKKU_ROOT}/.ssh" "${DOKKU_ROOT}/.dokkurc"
}
setup-storage() {
echo "Setting up storage directories"
mkdir -p "${DOKKU_LIB_ROOT}/data" "${DOKKU_LIB_ROOT}/data/storage"
chown dokku:dokku "${DOKKU_LIB_ROOT}/data"
}
setup-plugins() {
echo "Deleting invalid plugins"
if [ -f "${DOKKU_LIB_ROOT}/core-plugins/available/" ]; then
find "${DOKKU_LIB_ROOT}/core-plugins/available/" -type d -empty -delete
fi
if [ -f "${DOKKU_LIB_ROOT}/core-plugins/enabled/" ]; then
find "${DOKKU_LIB_ROOT}/core-plugins/enabled/" -type d -empty -delete
fi
if [ -f "${DOKKU_LIB_ROOT}/plugins/available/" ]; then
find "${DOKKU_LIB_ROOT}/plugins/available/" -type d -empty -delete
fi
if [ -f "${DOKKU_LIB_ROOT}/plugins/enabled/" ]; then
find "${DOKKU_LIB_ROOT}/plugins/enabled/" -type d -empty -delete
fi
echo "Setting up plugin directories"
# should be replaced by `plugn init`
mkdir -p "${DOKKU_LIB_ROOT}/core-plugins/available" "${DOKKU_LIB_ROOT}/plugins/available"
mkdir -p "${DOKKU_LIB_ROOT}/core-plugins/enabled" "${DOKKU_LIB_ROOT}/plugins/enabled"
touch "${DOKKU_LIB_ROOT}/core-plugins/config.toml" "${DOKKU_LIB_ROOT}/plugins/config.toml"
echo "Migrating old plugins"
find "${DOKKU_LIB_ROOT}/plugins" -mindepth 1 -maxdepth 1 -type d -printf '%f\n' | while read -r plugin; do
if [ "${plugin}" = "available" ] || [ "${plugin}" = "enabled" ]; then
continue
elif [ -f "${DOKKU_LIB_ROOT}/plugins/${plugin}/.core" ]; then
rm -rf "${DOKKU_LIB_ROOT}/plugins/${plugin}"
elif [ ! -d "${DOKKU_LIB_ROOT}/plugins/available/${plugin}" ]; then
mv "${DOKKU_LIB_ROOT}/plugins/${plugin}" "${DOKKU_LIB_ROOT}/plugins/available"
fi
done
echo "Enabling all core plugins"
find "${DOKKU_LIB_ROOT}/core-plugins/available" -mindepth 1 -maxdepth 1 -type d -printf '%f\n' | while read -r plugin; do
if [ ! -d "${DOKKU_LIB_ROOT}/plugins/available/${plugin}" ]; then
ln -s "${DOKKU_LIB_ROOT}/core-plugins/available/${plugin}" "${DOKKU_LIB_ROOT}/plugins/available/${plugin}"
PLUGIN_PATH="${DOKKU_LIB_ROOT}/core-plugins" plugn enable "${plugin}"
PLUGIN_PATH="${DOKKU_LIB_ROOT}/plugins" plugn enable "${plugin}"
fi
done
find -L "${DOKKU_LIB_ROOT}/core-plugins" -type l -delete
find -L "${DOKKU_LIB_ROOT}/plugins" -type l -delete
chown dokku:dokku -R "${DOKKU_LIB_ROOT}/plugins" "${DOKKU_LIB_ROOT}/core-plugins"
echo "Install all core plugins"
echo -e "#!/bin/sh\\n\\n~/.basher/bash -l \$1 \"\$2 \$3\"" > /tmp/login-basher
chmod +x /tmp/login-basher
BASH_BIN=/tmp/login-basher dokku plugin:install --core
rm /tmp/login-basher
echo "%dokku ALL=(ALL) NOPASSWD:/usr/bin/crontab -l -u dokku" > /etc/sudoers.d/dokku-crontab
echo "%dokku ALL=(ALL) NOPASSWD:/usr/bin/crontab -r -u dokku" >> /etc/sudoers.d/dokku-crontab
echo "%dokku ALL=(ALL) NOPASSWD:/usr/bin/crontab -u dokku *" >> /etc/sudoers.d/dokku-crontab
chmod 440 /etc/sudoers.d/dokku-crontab
rm -f /etc/update-motd.d/99-dokku
sed -i 's/ syslog dokku$/ root dokku/g' /etc/logrotate.d/dokku
}
setup-sshcommand() {
echo "Ensure proper sshcommand path"
echo '/usr/bin/dokku' > "${DOKKU_ROOT}/.sshcommand"
if [[ -f .ssh/authorized_keys ]]; then
sed -i.bak 's#/usr/local/bin/dokku#/usr/bin/dokku#' "${DOKKU_ROOT}/.ssh/authorized_keys"
rm "${DOKKU_ROOT}/.ssh/authorized_keys"
fi
}
post_install() {
setup-user
setup-storage
setup-plugins
setup-sshcommand
echo "
If using virtualhost routing is desired (eg. my-app => my-app.dokku.me), set a global domain for your server:
$ dokku domains:set-global dokku.me
Setup a user's ssh key for deployment by passing in the public ssh key as shown:
$ echo 'CONTENTS_OF_ID_RSA_PUB_FILE' | dokku ssh-keys:add admin
To enable nginx autoconfiguration, add to your /etc/nginx/nginx.conf in http section:
include /etc/nginx/conf.d/*.conf;
And reload nginx:
$ sudo systemctl reload nginx
"
}
post_upgrade() {
post_install "$1"
}
pre_remove() {
echo "Destroying deployed applications"
for app in $(DOKKU_QUIET_OUTPUT=1 dokku apps:list); do
dokku --force apps:destroy "${app}"
done
# HACK: Only disable core plugins, as we don't know what data users store in non-core plugin directories
echo "Disabling all core plugins"
find ${DOKKU_LIB_ROOT}/core-plugins/available -mindepth 1 -maxdepth 1 -type d -printf '%f\n' | while read -r plugin; do
if [ ! -d "${DOKKU_LIB_ROOT}/plugins/available/${plugin}" ]; then
rm "${DOKKU_LIB_ROOT}/plugins/available/${plugin}"
PLUGIN_PATH=${DOKKU_LIB_ROOT}/core-plugins plugn disable "${plugin}"
PLUGIN_PATH=${DOKKU_LIB_ROOT}/plugins plugn disable "${plugin}"
fi
done
dokku cleanup
}
post_remove() {
rm -f /var/cache/dokku-completion
rm -f /etc/systemd/system/dokku-redeploy.service
rm -f /etc/systemd/system/dokku-retire.timer
rm -f /etc/systemd/system/dokku-retire.service
rm -f /etc/logrotate.d/dokku
rm -f /etc/sudoers.d/dokku-crontab
# Remove nginx configuration
rm -f /etc/nginx/conf.d/dokku.conf
# Remove data and logs
rm -rf "${DOKKU_LIB_ROOT}"
rm -rf "${DOKKU_LOGS_DIR}"
# Remove dokku user and group
userdel -r dokku || true
groupdel dokku &>/dev/null
echo "
Please remove to your /etc/nginx/nginx.conf in http section:
include /etc/nginx/conf.d/*.conf;
And reload nginx:
$ sudo systemctl reload nginx
"
}
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