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10b01ac836
This PR adds readiness and liveness endpoints to probe Minio server instance health. Endpoints can only be accessed without authentication and the paths are /minio/health/live and /minio/health/ready for liveness and readiness respectively. The new healthcheck liveness endpoint is used for Docker healthcheck now. Fixes #5357 Fixes #5514
57 lines
2.0 KiB
Bash
Executable File
57 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Minio Cloud Storage, (C) 2017 Minio, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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set -x
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_init () {
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scheme="http://"
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address="$(netstat -nplt 2>/dev/null | awk ' /(.*\/minio)/ { gsub(":::","127.0.0.1:",$4); print $4}')"
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resource="/minio/health/live"
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start=$(stat -c "%Y" /proc/1)
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}
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healthcheck_main () {
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# In distributed environment like Swarm, traffic is routed
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# to a container only when it reports a `healthy` status. So, we exit
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# with 0 to ensure healthy status till distributed Minio starts (120s).
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#
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# Refer: https://github.com/moby/moby/pull/28938#issuecomment-301753272
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if [ $(( $(date +%s) - start )) -lt 120 ]; then
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exit 0
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else
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# Get the http response code
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http_response=$(curl -s -k -o /dev/null -I -w "%{http_code}" ${scheme}${address}${resource})
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# Get the http response body
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http_response_body=$(curl -k -s ${scheme}${address}${resource})
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# server returns response 403 and body "SSL required" if non-TLS
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# connection is attempted on a TLS-configured server. Change
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# the scheme and try again
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if [ "$http_response" = "403" ] && \
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[ "$http_response_body" = "SSL required" ]; then
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scheme="https://"
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http_response=$(curl -s -k -o /dev/null -I -w "%{http_code}" ${scheme}${address}${resource})
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fi
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# If http_repsonse is 200 - server is up.
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[ "$http_response" = "200" ]
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fi
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}
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_init && healthcheck_main
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