53f84d6084
Swarm routes traffic only to containers that report healthy status, while Minio in distributed mode needs to talk to other peers before it can respond to healthcheck probe. As the Minio containers are not able to talk to each other, distributed Minio is not getting started on Docker Swarm. With this PR, Minio Healthcheck report healthy status for initial 120s enough for distributed Minio to start. After that normal Healthcheck resumes. Also changed the healthcheck method name in accordance with Google shell styleguide. Fixes: https://github.com/minio/minio/issues/4761
59 lines
2.1 KiB
Bash
59 lines
2.1 KiB
Bash
#!/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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_init () {
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scheme="http://"
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address="127.0.0.1:9000"
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resource="/minio/index.html"
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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}" \
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${scheme}${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}" \
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${scheme}${address}${resource})
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fi
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# If http_repsonse is 200 - server is up. When MINIO_BROWSER is
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# set to off, curl responds with 404. We assume that the server
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# is up
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[ "$http_response" = "200" ] || [ "$http_response" = "404" ]
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fi
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}
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_init && healthcheck_main
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