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Better handling of tags update

This commit is contained in:
Daniel Berteaud 2024-03-07 15:46:17 +01:00
parent 26f3f1d1f8
commit 80da801ea6
3 changed files with 14 additions and 6 deletions
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8
example/postgres.nomad.hcl
View File

@ -201,9 +201,13 @@ def create_svc_txn:
select(.ServiceTags[] | contains($mytag))
# Add needed tags
| .ServiceTags -= ["master", "replica", "uninitialized"]
| .ServiceTags -= ["master"]
| .ServiceTags -= ["replica"]
| .ServiceTags -= ["uninitialized"]
| .ServiceTags -= ["traefik.enable=true"]
| .ServiceTags -= ["traefik.enable=false"]
| .ServiceTags += [$role]
| if $role == "master" then .ServiceTags += ["traefik.enable=true"] else .ServiceTags -= ["traefik.enable=true"] end
| if $role == "master" then .ServiceTags += ["traefik.enable=true"] else .ServiceTags += ["traefik.enable=false"] end
# Rewrite keys to remove the Service prefix
| nest_service_params as $nested_params

8
templates/serviceformat.jq.tpl
View File

@ -9,10 +9,14 @@ def create_svc_txn:
select(.ServiceTags[] | contains($mytag))
# Add needed tags
| .ServiceTags -= ["master", "replica", "uninitialized"]
| .ServiceTags -= ["master"]
| .ServiceTags -= ["replica"]
| .ServiceTags -= ["uninitialized"]
| .ServiceTags -= ["[[ .traefik.instance ]].enable=true"]
| .ServiceTags -= ["[[ .traefik.instance ]].enable=false"]
| .ServiceTags += [$role]
[[- if .traefik.enabled ]]
| if $role == "master" then .ServiceTags += ["[[ .traefik.instance ]].enable=true"] else .ServiceTags -= ["[[ .traefik.instance ]].enable=true"] end
| if $role == "master" then .ServiceTags += ["[[ .traefik.instance ]].enable=true"] else .ServiceTags += ["[[ .traefik.instance ]].enable=false"] end
[[- end ]]
# Rewrite keys to remove the Service prefix

4
templates/update_tags.sh.tpl
View File

@ -19,10 +19,10 @@ CURL_OPTS="--connect-timeout 5 --max-time 10 --retry 5 --retry-delay 1 --retry-m
# Update tags on the main service
curl ${CURL_OPTS} -H "X-Consul-Token: ${CONSUL_HTTP_TOKEN}" http://{{ sockaddr "GetInterfaceIP \"nomad\"" }}:8500/v1/catalog/service/[[ .instance ]] |\
jq --from-file /local/serviceformat.jq --arg role ${NEW_ROLE} --arg mytag [[ .instance ]]-{{ env "NOMAD_ALLOC_INDEX" }} |\
jq --from-file /local/serviceformat.jq --arg role ${NEW_ROLE} --arg mytag postgres-{{ env "NOMAD_ALLOC_INDEX" }} |\
curl ${CORL_OPTS} -H "X-Consul-Token: ${CONSUL_HTTP_TOKEN}" -X PUT -d @- http://{{ sockaddr "GetInterfaceIP \"nomad\"" }}:8500/v1/agent/service/register
# Update tags on the sidecar service (connect-proxy)
curl ${CURL_OPTS} -H "X-Consul-Token: ${CONSUL_HTTP_TOKEN}" http://{{ sockaddr "GetInterfaceIP \"nomad\"" }}:8500/v1/catalog/service/[[ .instance ]]-sidecar-proxy |\
jq --from-file /local/serviceformat.jq --arg role ${NEW_ROLE} --arg mytag [[ .instance ]]-{{ env "NOMAD_ALLOC_INDEX" }} |\
jq --from-file /local/serviceformat.jq --arg role ${NEW_ROLE} --arg mytag postgres-{{ env "NOMAD_ALLOC_INDEX" }} |\
curl ${CURL_OPTS} -H "X-Consul-Token: ${CONSUL_HTTP_TOKEN}" -X PUT -d @- http://{{ sockaddr "GetInterfaceIP \"nomad\"" }}:8500/v1/agent/service/register