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docker-letsencrypt-nginx-pr.../app/functions.sh
Bjoern Busch 783ae214cf Update docker API call
Based on the docker issue (https://github.com/docker/docker/issues/26099) the docker api needs to be called with `localhost` in the URL.
2017-01-19 21:14:10 +01:00

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[[ -z "${VHOST_DIR:-}" ]] && \
declare -r VHOST_DIR=/etc/nginx/vhost.d
[[ -z "${START_HEADER:-}" ]] && \
declare -r START_HEADER='## Start of configuration add by letsencrypt container'
[[ -z "${END_HEADER:-}" ]] && \
declare -r END_HEADER='## End of configuration add by letsencrypt container'
add_location_configuration() {
local domain="${1:-}"
[[ -z "$domain" || ! -f "${VHOST_DIR}/${domain}" ]] && domain=default
[[ -f "${VHOST_DIR}/${domain}" && \
-n $(sed -n "/$START_HEADER/,/$END_HEADER/p" "${VHOST_DIR}/${domain}") ]] && return 0
echo "$START_HEADER" > "${VHOST_DIR}/${domain}".new
cat /app/nginx_location.conf >> "${VHOST_DIR}/${domain}".new
echo "$END_HEADER" >> "${VHOST_DIR}/${domain}".new
[[ -f "${VHOST_DIR}/${domain}" ]] && cat "${VHOST_DIR}/${domain}" >> "${VHOST_DIR}/${domain}".new
mv -f "${VHOST_DIR}/${domain}".new "${VHOST_DIR}/${domain}"
return 1
}
remove_all_location_configurations() {
local old_shopt_options=$(shopt -p) # Backup shopt options
shopt -s nullglob
for file in "${VHOST_DIR}"/*; do
[[ -n $(sed -n "/$START_HEADER/,/$END_HEADER/p" "$file") ]] && \
sed -i "/$START_HEADER/,/$END_HEADER/d" "$file"
done
eval "$old_shopt_options" # Restore shopt options
}
## Docker API
function docker_api {
local scheme
local curl_opts=(-s)
local method=${2:-GET}
# data to POST
if [[ -n "${3:-}" ]]; then
curl_opts+=(-d "$3")
fi
if [[ -z "$DOCKER_HOST" ]];then
echo "Error DOCKER_HOST variable not set" >&2
return 1
fi
if [[ $DOCKER_HOST == unix://* ]]; then
curl_opts+=(--unix-socket ${DOCKER_HOST#unix://})
scheme='http://localhost'
else
scheme="http://${DOCKER_HOST#*://}"
fi
[[ $method = "POST" ]] && curl_opts+=(-H 'Content-Type: application/json')
curl "${curl_opts[@]}" -X${method} ${scheme}$1
}
function docker_exec {
local id="${1?missing id}"
local cmd="${2?missing command}"
local data=$(printf '{ "AttachStdin": false, "AttachStdout": true, "AttachStderr": true, "Tty":false,"Cmd": %s }' "$cmd")
exec_id=$(docker_api "/containers/$id/exec" "POST" "$data" | jq -r .Id)
if [[ -n "$exec_id" ]]; then
docker_api /exec/$exec_id/start "POST" '{"Detach": false, "Tty":false}'
fi
}
function docker_kill {
local id="${1?missing id}"
local signal="${2?missing signal}"
docker_api "/containers/$id/kill?signal=$signal" "POST"
}
## Nginx
reload_nginx() {
if [[ -n "${NGINX_DOCKER_GEN_CONTAINER:-}" ]]; then
# Using docker-gen separate container
echo "Reloading nginx proxy (using separate container ${NGINX_DOCKER_GEN_CONTAINER})..."
docker_kill "$NGINX_DOCKER_GEN_CONTAINER" SIGHUP
else
if [[ -n "${NGINX_PROXY_CONTAINER:-}" ]]; then
echo "Reloading nginx proxy..."
docker_exec "$NGINX_PROXY_CONTAINER" \
'[ "sh", "-c", "/usr/local/bin/docker-gen -only-exposed /app/nginx.tmpl /etc/nginx/conf.d/default.conf; /usr/sbin/nginx -s reload" ]'
fi
fi
}
# Convert argument to lowercase (bash 4 only)
function lc() {
echo "${@,,}"
}