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Diffstat (limited to 'claim/netdata-claim.sh.in')
| -rwxr-xr-x | claim/netdata-claim.sh.in | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/claim/netdata-claim.sh.in b/claim/netdata-claim.sh.in new file mode 100755 index 0000000000..e565e3de28 --- /dev/null +++ b/claim/netdata-claim.sh.in @@ -0,0 +1,216 @@ +#!/usr/bin/env bash +# netdata +# real-time performance and health monitoring, done right! +# (C) 2017 Costa Tsaousis <costa@tsaousis.gr> +# SPDX-License-Identifier: GPL-3.0-or-later + +# Exit code: 0 - Success +# Exit code: 1 - Unknown argument +# Exit code: 2 - Problems with claiming working directory +# Exit code: 3 - Missing dependencies +# Exit code: 4 - Failure to connect to endpoint +# Exit code: 5 - Unknown HTTP error message +# +# OK: Agent claimed successfully +# HTTP Status code: 200 +# Exit code: 0 +# +# Error: The agent id is invalid; it does not fulfill the constraints +# HTTP Status code: 422 +# Error message: "invalid agent id" +# Exit code: 6 +# +# Error: Invalid public key; the public key is empty or not present +# HTTP Status code: 422 +# Error message: "invalid public key" +# Exit code: 7 +# +# Error: Expired token +# HTTP Status code: 403 +# Error message: "token has expired" +# Exit code: 8 +# +# Error: Invalid claiming token; missing, undecryptable, invalid payload... +# HTTP Status code: 422 +# Error message: "invalid token" +# Exit code: 9 +# +# Error: Duplicate agent id; an agent with the same id but a different public key is already registered in the cloud +# HTTP Status code: 409 +# Error message: "duplicate agent id" +# Exit code: 10 +# +# Error: Already claimed in another workspace; +# this agent (same id, same public key) already belongs to another workspace +# HTTP Status code: 403 +# Error message: "claimed in another workspace" +# Exit code: 11 +# +# Error: Internal server error. Any other unexpected error (DB problems, etc.) +# HTTP Status code: 500 +# Error message: "internal server error" +# Exit code: 12 + +if command -v curl >/dev/null 2>&1 ; then + URLTOOL="curl" +elif command -v wget >/dev/null 2>&1 ; then + URLTOOL="wget" +else + echo >&2 "I need curl or wget to proceed, but neither is available on this system." + exit 3 +fi +if ! command -v openssl >/dev/null 2>&1 ; then + echo >&2 "I need openssl to proceed, but neither is available on this system." + exit 3 +fi + + +# ----------------------------------------------------------------------------- +# defaults to allow running this script by hand + +[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@" +MACHINE_GUID_FILE="@registrydir_POST@/netdata.public.unique.id" +CLAIMING_DIR="${NETDATA_USER_CONFIG_DIR}/claim.d" +TOKEN="unknown" +URL_BASE="https://netdata.cloud" +ID="unknown" +ROOMS="" +HOSTNAME=$(hostname) +CLOUD_CERTIFICATE_FILE="${CLAIMING_DIR}/cloud_fullchain.pem" + +# get the MACHINE_GUID by default +if [ -r "${MACHINE_GUID_FILE}" ]; then + ID="$(cat "${MACHINE_GUID_FILE}")" +fi + +# get token from file +if [ -r "${CLAIMING_DIR}/token" ]; then + TOKEN="$(cat "${CLAIMING_DIR}/token")" +fi + +# get rooms from file +if [ -r "${CLAIMING_DIR}/rooms" ]; then + ROOMS="$(cat "${CLAIMING_DIR}/rooms")" +fi + +for arg in "$@" +do + case $arg in + -token=*) TOKEN=${arg:7} ;; + -url=*) URL_BASE=${arg:5} ;; + -id=*) ID=${arg:4} ;; + -rooms=*) ROOMS=${arg:7} ;; + -hostname=*) HOSTNAME=${arg:10} ;; + *) echo >&2 "Unknown argument ${arg}" + exit 1 ;; + esac + shift 1 +done + +echo >&2 "Token: ****************" +echo >&2 "Base URL: $URL_BASE" +echo >&2 "Id: $ID" +echo >&2 "Rooms: $ROOMS" +echo >&2 "Hostname: $HOSTNAME" + +# create the claiming directory for this user +if [ ! -d "${CLAIMING_DIR}" ] ; then + mkdir -p "${CLAIMING_DIR}" && chmod 0770 "${CLAIMING_DIR}" +# shellcheck disable=SC2181 + if [ $? -ne 0 ] ; then + echo >&2 "Failed to create claiming working directory ${CLAIMING_DIR}" + exit 2 + fi +fi +if [ ! -w "${CLAIMING_DIR}" ] ; then + echo >&2 "No write permission in claiming working directory ${CLAIMING_DIR}" + exit 2 +fi + +if [ ! -f "${CLAIMING_DIR}/private.pem" ] ; then + echo >&2 "Generating private/public key for the first time." + if ! openssl genrsa -out "${CLAIMING_DIR}/private.pem" 2048 ; then + echo >&2 "Failed to generate private/public key pair." + exit 2 + fi +fi +if [ ! -f "${CLAIMING_DIR}/public.pem" ] ; then + echo >&2 "Extracting public key from private key." + if ! openssl rsa -in "${CLAIMING_DIR}/private.pem" -outform PEM -pubout -out "${CLAIMING_DIR}/public.pem" ; then + echo >&2 "Failed to extract public key." + exit 2 + fi +fi + +TARGET_URL="${URL_BASE}/api/v1/workspaces/agents/${ID}" +# shellcheck disable=SC2002 +KEY=$(cat "${CLAIMING_DIR}/public.pem" | tr '\n' '!' | sed -e 's/!/\\n/g') +# shellcheck disable=SC2001 +[ -n "$ROOMS" ] && ROOMS=\"$(echo "$ROOMS" | sed s'/,/", "/g')\" + +cat > "${CLAIMING_DIR}/tmpin.txt" <<EMBED_JSON +{ + "agent": { + "id": "$ID", + "hostname": "$HOSTNAME" + }, + "token": "$TOKEN", + "rooms" : [ $ROOMS ], + "publicKey" : "$KEY" +} +EMBED_JSON + + +if [ "${URLTOOL}" = "curl" ] ; then + URLCOMMAND="curl --connect-timeout 5 --retry 3 -s -i -X PUT -d \"@${CLAIMING_DIR}/tmpin.txt\"" +else + URLCOMMAND="wget -T 15 -O - -q --save-headers --content-on-error=on --method=PUT \ + --body-file=\"${CLAIMING_DIR}/tmpin.txt\"" +fi + +if [ -r "${CLOUD_CERTIFICATE_FILE}" ] ; then + if [ "${URLTOOL}" = "curl" ] ; then + URLCOMMAND="${URLCOMMAND} --cacert \"${CLOUD_CERTIFICATE_FILE}\"" + else + URLCOMMAND="${URLCOMMAND} --ca-certificate \"${CLOUD_CERTIFICATE_FILE}\"" + fi +fi + +eval "${URLCOMMAND} \"${TARGET_URL}\"" | tee "${CLAIMING_DIR}/tmpout.txt" +URLCOMMAND_EXIT_CODE=$? +if [ "${URLTOOL}" = "wget" ] && [ "${URLCOMMAND_EXIT_CODE}" -eq 8 ] ; then +# We consider the server issuing an error response a successful attempt at communicating + URLCOMMAND_EXIT_CODE=0 +fi + +rm -f "${CLAIMING_DIR}/tmpin.txt" + +# Check if URLCOMMAND connected and received reply +if [ "${URLCOMMAND_EXIT_CODE}" -ne 0 ] ; then + echo >&2 "Failed to connect to ${URL_BASE}" + rm -f "${CLAIMING_DIR}/tmpout.txt" + exit 4 +fi + +HTTP_STATUS_CODE=$(grep "HTTP" "${CLAIMING_DIR}/tmpout.txt" | awk -F " " '{print $2}') +if [ "${HTTP_STATUS_CODE}" -ne 200 ] ; then + ERROR_MESSAGE=$(grep "\"error\":" "${CLAIMING_DIR}/tmpout.txt" | awk -F "error\":\"" '{print $2}' | sed s'/"}//g') + case ${ERROR_MESSAGE} in + "invalid agent id") EXIT_CODE=6 ;; + "invalid public key") EXIT_CODE=7 ;; + "token has expired") EXIT_CODE=8 ;; + "invalid token") EXIT_CODE=9 ;; + "duplicate agent id") EXIT_CODE=10 ;; + "claimed in another workspace") EXIT_CODE=11 ;; + "internal server error") EXIT_CODE=12 ;; + *) EXIT_CODE=5 ;; + esac + echo >&2 "Failed to claim agent." + rm -f "${CLAIMING_DIR}/tmpout.txt" + exit $EXIT_CODE +fi + +rm -f "${CLAIMING_DIR}/tmpout.txt" +touch "${CLAIMING_DIR}/is_claimed" +rm -f "${CLAIMING_DIR}/token" +echo >&2 "Agent was successfully claimed."
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