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https://nginx.org/en/docs/http/ngx_http_map_module.html Since Puppet doesn’t manage the contents of nginx_sharding.conf after its initial creation, it needs to be renamed so we can give it different default contents. Signed-off-by: Anders Kaseorg <anders@zulip.com>
41 lines
1.8 KiB
Bash
Executable File
41 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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# Stand up the new zulip-tornado supervisor instances, and write out
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# the newly generated config files, with .tmp suffix
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SUPPRESS_SHARDING_NOTICE=1 "$(dirname "$0")/zulip-puppet-apply" -f
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# Verify, before we move them into place
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if ! [ -e /etc/zulip/nginx_sharding_map.conf.tmp ] || ! [ -e /etc/zulip/sharding.json.tmp ]; then
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echo "No sharding updates found to apply."
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exit 1
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fi
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chown root:root /etc/zulip/nginx_sharding_map.conf.tmp
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chmod 644 /etc/zulip/nginx_sharding_map.conf.tmp
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chown zulip:zulip /etc/zulip/sharding.json.tmp
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chmod 644 /etc/zulip/sharding.json.tmp
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mv /etc/zulip/nginx_sharding_map.conf.tmp /etc/zulip/nginx_sharding_map.conf
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mv /etc/zulip/sharding.json.tmp /etc/zulip/sharding.json
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# In the ordering of operations below, the crucial detail is that
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# zulip-django and zulip-workers:* need to be restarted before
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# reloading nginx. Django has an in-memory map of which realm belongs
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# to which shard. Reloading nginx will cause users' tornado requests
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# to be routed according to the new sharding scheme. If that happens
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# before Django is restarted, updating its realm->shard map, users on
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# realms, whose shard has changed, will have their tornado requests
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# handled by the new tornado process, while Django will still use the
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# old process for its internal communication with tornado when
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# servicing the user's requests. That's a bad state that leads to
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# clients getting into reload loops ending in crashing on 500 response
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# while Django is restarting. For this reason it's important to
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# reload nginx only after Django.
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supervisorctl restart zulip-django
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supervisorctl restart 'zulip-workers:*'
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if [ -f /etc/supervisor/conf.d/zulip/zulip-once.conf ]; then
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supervisorctl restart zulip_deliver_scheduled_emails zulip_deliver_scheduled_messages
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fi
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service nginx reload
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