PMM-12619: Make PMM environment variables more consistent

.github/workflows/api-tests.yml

@@ -94,9 +94,8 @@ jobs:
               container_name: pmm-agent_pmm-server
               environment:
                 - PMM_DEBUG=1
-                - PERCONA_TEST_CHECKS_INTERVAL=10s
-                - PERCONA_TEST_PLATFORM_ADDRESS=https://check-dev.percona.com
-                - PERCONA_TEST_PLATFORM_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
+                - PMM_DEV_PERCONA_PLATFORM_ADDRESS=https://check-dev.percona.com
+                - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
               ports:
                 - 80:8080
                 - 443:8443

agent/docker-compose.yml

@@ -10,12 +10,11 @@ services:
       - "127.0.0.1:443:8443"
     environment:
       - PMM_DEBUG=1
-      - PERCONA_TEST_CHECKS_INTERVAL=10s
       # for local development
-      - PERCONA_TEST_CHECKS_FILE=/srv/checks/custom-checks.yml
+      - PMM_DEV_ADVISOR_CHECKS_FILE=/srv/checks/custom-checks.yml
       # for check-dev
-      # - PERCONA_TEST_SAAS_HOST=check-dev.percona.com:443
-      # - PERCONA_TEST_CHECKS_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
+      # - PMM_DEV_PERCONA_PLATFORM_ADDRESS=check-dev.percona.com:443
+      # - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
     volumes:
       - ./testdata/checks:/srv/checks
 

api-tests/docker-compose.yml

@@ -10,12 +10,11 @@ services:
       - 127.0.0.1:443:8443
     environment:
       - PMM_DEBUG=1
-      - PERCONA_TEST_CHECKS_INTERVAL=10s
       # for local development
-      # - PERCONA_TEST_CHECKS_FILE=/srv/checks/custom-checks.yml
+      # - PMM_DEV_ADVISOR_CHECKS_FILE=/srv/checks/custom-checks.yml
       # for check-dev
-      - PERCONA_TEST_SAAS_HOST=check-dev.percona.com
-      - PERCONA_TEST_CHECKS_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
+      - PMM_DEV_PERCONA_PLATFORM_ADDRESS=check-dev.percona.com
+      - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
     volumes:
       - ./testdata/checks:/srv/checks
 

api-tests/management/alerting/alerting_test.go

@@ -41,7 +41,7 @@ import (
 
 // Note: Even though the Alerting service checks for alerting enabled or disabled before returning results
 // we don't enable or disable Alerting explicit in our tests since it is enabled by default through
-// DISABLE_ALERTING env var.
+// PMM_DISABLE_ALERTING env var.
 func TestRulesAPI(t *testing.T) {
 	t.Parallel()
 	client := alertingClient.Default.Alerting

build/ansible/roles/grafana/files/datasources.yml

@@ -19,17 +19,17 @@ datasources:
   orgId: 1
   type: postgres
   access: proxy
-  url: ${PERCONA_TEST_POSTGRES_ADDR}
-  user: ${PERCONA_TEST_POSTGRES_USERNAME}
-  database: ${PERCONA_TEST_POSTGRES_DBNAME}
+  url: ${PMM_POSTGRES_ADDR}
+  user: ${PMM_POSTGRES_USERNAME}
+  database: ${PMM_POSTGRES_DBNAME}
   jsonData:
-    sslRootCertFile: ${PERCONA_TEST_POSTGRES_SSL_CA_PATH}
-    sslKeyFile: ${PERCONA_TEST_POSTGRES_SSL_KEY_PATH}
-    sslCertFile: ${PERCONA_TEST_POSTGRES_SSL_CERT_PATH}
+    sslRootCertFile: ${PMM_POSTGRES_SSL_CA_PATH}
+    sslKeyFile: ${PMM_POSTGRES_SSL_KEY_PATH}
+    sslCertFile: ${PMM_POSTGRES_SSL_CERT_PATH}
     postgresVersion: "1100"
-    sslmode: ${PERCONA_TEST_POSTGRES_SSL_MODE}
+    sslmode: ${PMM_POSTGRES_SSL_MODE}
   secureJsonData:
-    password: ${PERCONA_TEST_POSTGRES_DBPASSWORD}
+    password: ${PMM_POSTGRES_DBPASSWORD}
 - name: PTSummary
   version: 2
   orgId: 1
@@ -40,6 +40,6 @@ datasources:
   version: 2
   type: grafana-clickhouse-datasource
   jsonData:
-    port: ${PERCONA_TEST_PMM_CLICKHOUSE_PORT}
-    server: ${PERCONA_TEST_PMM_CLICKHOUSE_HOST}
+    port: ${PMM_CLICKHOUSE_PORT}
+    server: ${PERCONA_DEV_PMM_CLICKHOUSE_HOST}
     tlsSkipVerify: false

build/docker/server/README.md

@@ -23,22 +23,21 @@ This example uses the tag `:3` to pull the latest PMM 3.x version, but other, [m
 
 You can use these environment variables (-e VAR) when running the Docker image.
 
-| Variable                 | Description                                                                                                                 |
-|--------------------------|-----------------------------------------------------------------------------------------------------------------------------|
-| DISABLE_UPDATES          | Disable automatic updates                                                                                                   |
-| DISABLE_TELEMETRY        | Disable built-in telemetry and disable STT if telemetry is disabled                                                         |
-| DISABLE_ALERTING         | Disable percona alerting                                                                                                    |
-| METRICS_RESOLUTION       | High metrics resolution in seconds                                                                                          |
-| METRICS_RESOLUTION_HR    | High metrics resolution (same as above)                                                                                     |
-| METRICS_RESOLUTION_MR    | Medium metrics resolution in seconds                                                                                        |
-| METRICS_RESOLUTION_LR    | Low metrics resolution in seconds                                                                                           |
-| DATA_RETENTION           | How long to keep time-series data in ClickHouse. This variable accepts golang style duration format, example: 24h, 30m, 10s |
-| ENABLE_VM_CACHE          | Enable cache in VM                                                                                                          |
-| ENABLE_AZUREDISCOVER     | Enable support for discovery of Azure databases                                                                             |
-| ENABLE_BACKUP_MANAGEMENT | Enable integrated backup tools                                                                                              |
-| PMM_PUBLIC_ADDRESS       | External IP address or the DNS name on which PMM server is running.                                                         |
-| PMM_DEBUG                | Enables a more verbose log level                                                                                            |
-| PMM_TRACE                | Enables a more verbose log level including traceback information                                                            |
+| Variable                     | Description                                                                                                                 |
+|------------------------------|-----------------------------------------------------------------------------------------------------------------------------|
+| PMM_DISABLE_UPDATES          | Disable automatic updates                                                                                                   |
+| PMM_DISABLE_TELEMETRY        | Disable built-in telemetry and disable STT if telemetry is disabled                                                         |
+| PMM_DISABLE_ALERTING         | Disable Percona alerting                                                                                                    |
+| PMM_METRICS_RESOLUTION       | High metrics resolution in seconds                                                                                          |
+| PMM_METRICS_RESOLUTION_HR    | High metrics resolution (same as above)                                                                                     |
+| PMM_METRICS_RESOLUTION_MR    | Medium metrics resolution in seconds                                                                                        |
+| PMM_METRICS_RESOLUTION_LR    | Low metrics resolution in seconds                                                                                           |
+| PMM_DATA_RETENTION           | How long to keep time-series data in ClickHouse. This variable accepts golang style duration format, example: 24h, 30m, 10s |
+| PMM_ENABLE_VM_CACHE          | Enable cache in VM                                                                                                          |
+| PMM_ENABLE_AZURE_DISCOVER     | Enable support for discovery of Azure databases                                                                             |
+| PMM_PUBLIC_ADDRESS           | External IP address or the DNS name on which PMM server is running.                                                         |
+| PMM_DEBUG                    | Enables a more verbose log level                                                                                            |
+| PMM_TRACE                    | Enables a more verbose log level including traceback information                                                            |
 
 ## For more information please visit:
 

docker-compose.yml

@@ -16,34 +16,34 @@ services:
     networks:
       - ${NETWORK:-default}
     environment:
-      - PMM_RELEASE_PATH=/root/go/bin
-      - REVIEWDOG_GITHUB_API_TOKEN=${REVIEWDOG_GITHUB_API_TOKEN}
       - AWS_ACCESS_KEY=${AWS_ACCESS_KEY}
       - AWS_SECRET_KEY=${AWS_SECRET_KEY}
-      - ENABLE_RBAC=${ENABLE_RBAC:-0}
-      - LESS_LOG_NOISE=1
-      - PERCONA_TEST_VERSION_SERVICE_URL=${PERCONA_TEST_VERSION_SERVICE_URL}
-      # - PERCONA_TEST_PLATFORM_ADDRESS=https://check.localhost
-      # - PERCONA_TEST_PLATFORM_INSECURE=1
-      # - PERCONA_TEST_PLATFORM_PUBLIC_KEY=<public key>
-      # - PERCONA_TEST_TELEMETRY_INTERVAL=10s
-      # - PERCONA_TEST_TELEMETRY_DISABLE_START_DELAY=1
-      # - PERCONA_TEST_TELEMETRY_RETRY_BACKOFF=10s
-      # - PERCONA_TEST_PMM_CLICKHOUSE_ADDR=127.0.0.1:9000
-      # - PERCONA_TEST_PMM_CLICKHOUSE_DATABASE=pmm
-      # - PERCONA_TEST_PMM_CLICKHOUSE_BLOCK_SIZE=10000
-      # - PERCONA_TEST_PMM_CLICKHOUSE_POOL_SIZE=2
+      - REVIEWDOG_GITHUB_API_TOKEN=${REVIEWDOG_GITHUB_API_TOKEN}
+      - PMM_LESS_LOG_NOISE=1
+      - PMM_RELEASE_PATH=/root/go/bin
+      - PMM_ENABLE_RBAC=${PMM_ENABLE_RBAC:-0}
+      - PMM_DEV_VERSION_SERVICE_URL=${PMM_DEV_VERSION_SERVICE_URL}
+      # - PMM_DEV_PERCONA_PLATFORM_ADDRESS=https://check.localhost
+      # - PMM_DEV_PERCONA_PLATFORM_INSECURE=1
+      # - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=<public key>
+      # - PMM_DEV_TELEMETRY_INTERVAL=10s
+      # - PMM_DEV_TELEMETRY_DISABLE_START_DELAY=1
+      # - PMM_DEV_TELEMETRY_RETRY_BACKOFF=10s
+      # - PMM_CLICKHOUSE_ADDR=127.0.0.1:9000
+      # - PMM_CLICKHOUSE_DATABASE=pmm
+      # - PMM_CLICKHOUSE_BLOCK_SIZE=10000
+      # - PMM_CLICKHOUSE_POOL_SIZE=2
       # - PMM_DEBUG=1
-      # - PERCONA_TEST_CHECKS_FILE=/srv/checks/local-checks.yml
-      # - PERCONA_TEST_POSTGRES_ADDR=pg
-      # - PERCONA_TEST_POSTGRES_DBNAME=pmm-managed
-      # - PERCONA_TEST_POSTGRES_USERNAME=pmm-managed
-      # - PERCONA_TEST_POSTGRES_DBPASSWORD=pmm-managed
-      # - PERCONA_TEST_POSTGRES_SSL_MODE=verify-full
-      # - PERCONA_TEST_POSTGRES_SSL_CA_PATH=/tmp/certs/root.crt
-      # - PERCONA_TEST_POSTGRES_SSL_KEY_PATH=/tmp/certs/pmm-managed.key
-      # - PERCONA_TEST_POSTGRES_SSL_CERT_PATH=/tmp/certs/pmm-managed.crt
-      # - PERCONA_TEST_PMM_DISABLE_BUILTIN_POSTGRES=1
+      # - PMM_DEV_ADVISOR_CHECKS_FILE=/srv/checks/local-checks.yml
+      # - PMM_POSTGRES_ADDR=pg
+      # - PMM_POSTGRES_DBNAME=pmm-managed
+      # - PMM_POSTGRES_USERNAME=pmm-managed
+      # - PMM_POSTGRES_DBPASSWORD=pmm-managed
+      # - PMM_POSTGRES_SSL_MODE=verify-full
+      # - PMM_POSTGRES_SSL_CA_PATH=/tmp/certs/root.crt
+      # - PMM_POSTGRES_SSL_KEY_PATH=/tmp/certs/pmm-managed.key
+      # - PMM_POSTGRES_SSL_CERT_PATH=/tmp/certs/pmm-managed.crt
+      # - PMM_DISABLE_BUILTIN_POSTGRES=1
       # - GF_DATABASE_SSL_MODE=verify-full
       # - GF_DATABASE_CA_CERT_PATH=/tmp/certs/root.crt
       # - GF_DATABASE_CLIENT_KEY_PATH=/tmp/certs/grafana.key
@@ -206,26 +206,25 @@ services:
       - REVIEWDOG_GITHUB_API_TOKEN=${REVIEWDOG_GITHUB_API_TOKEN}
       - AWS_ACCESS_KEY=${AWS_ACCESS_KEY}
       - AWS_SECRET_KEY=${AWS_SECRET_KEY}
-      - ENABLE_BACKUP_MANAGEMENT=1
-      # - PERCONA_TEST_PLATFORM_ADDRESS=https://check.localhost
-      # - PERCONA_TEST_PLATFORM_INSECURE=1
-      # - PERCONA_TEST_PLATFORM_PUBLIC_KEY=<public key>
-      # - PERCONA_TEST_TELEMETRY_INTERVAL=10s
-      # - PERCONA_TEST_TELEMETRY_RETRY_BACKOFF=10s
-      # - PERCONA_TEST_TELEMETRY_DISABLE_START_DELAY=1
-      - PERCONA_TEST_PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
-      - PERCONA_TEST_PMM_CLICKHOUSE_DATABASE=pmm
-      - PERCONA_TEST_PMM_CLICKHOUSE_BLOCK_SIZE=10000
-      - PERCONA_TEST_PMM_CLICKHOUSE_POOL_SIZE=2
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_CLICKHOUSE=1
-      - PERCONA_TEST_POSTGRES_ADDR=pg:5432
-      - PERCONA_TEST_POSTGRES_USERNAME=pmm-managed
-      - PERCONA_TEST_POSTGRES_DBPASSWORD=pmm-managed
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_POSTGRES=1
-      # - PERCONA_TEST_POSTGRES_SSL_MODE=require
-      # - PERCONA_TEST_POSTGRES_SSL_CA_PATH=/certs/root.crt
-      # - PERCONA_TEST_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
-      # - PERCONA_TEST_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
+      # - PMM_DEV_PERCONA_PLATFORM_ADDRESS=https://check.localhost
+      # - PMM_DEV_PERCONA_PLATFORM_INSECURE=1
+      # - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=<public key>
+      # - PMM_DEV_TELEMETRY_INTERVAL=10s
+      # - PMM_DEV_TELEMETRY_RETRY_BACKOFF=10s
+      # - PMM_DEV_TELEMETRY_DISABLE_START_DELAY=1
+      - PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
+      - PMM_CLICKHOUSE_DATABASE=pmm
+      - PMM_CLICKHOUSE_BLOCK_SIZE=10000
+      - PMM_CLICKHOUSE_POOL_SIZE=2
+      - PMM_DISABLE_BUILTIN_CLICKHOUSE=1
+      - PMM_POSTGRES_ADDR=pg:5432
+      - PMM_POSTGRES_USERNAME=pmm-managed
+      - PMM_POSTGRES_DBPASSWORD=pmm-managed
+      - PMM_DISABLE_BUILTIN_POSTGRES=1
+      # - PMM_POSTGRES_SSL_MODE=require
+      # - PMM_POSTGRES_SSL_CA_PATH=/certs/root.crt
+      # - PMM_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
+      # - PMM_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
       - GF_DATABASE_URL=postgres://grafana:grafana@pg:5432/grafana
       # - GF_DATABASE_SSL_MODE=require
       # - PMM_DEBUG=1
@@ -290,25 +289,25 @@ services:
       - REVIEWDOG_GITHUB_API_TOKEN=${REVIEWDOG_GITHUB_API_TOKEN}
       - AWS_ACCESS_KEY=${AWS_ACCESS_KEY}
       - AWS_SECRET_KEY=${AWS_SECRET_KEY}
-      # - PERCONA_TEST_PLATFORM_ADDRESS=https://check.localhost
-      # - PERCONA_TEST_PLATFORM_INSECURE=1
-      # - PERCONA_TEST_PLATFORM_PUBLIC_KEY=<public key>
-      # - PERCONA_TEST_TELEMETRY_INTERVAL=10s
-      # - PERCONA_TEST_TELEMETRY_RETRY_BACKOFF=10s
-      # - PERCONA_TEST_TELEMETRY_DISABLE_START_DELAY=1
-      - PERCONA_TEST_PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
-      - PERCONA_TEST_PMM_CLICKHOUSE_DATABASE=pmm
-      - PERCONA_TEST_PMM_CLICKHOUSE_BLOCK_SIZE=10000
-      - PERCONA_TEST_PMM_CLICKHOUSE_POOL_SIZE=2
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_CLICKHOUSE=1
-      - PERCONA_TEST_POSTGRES_ADDR=pg:5432
-      - PERCONA_TEST_POSTGRES_USERNAME=pmm-managed
-      - PERCONA_TEST_POSTGRES_DBPASSWORD=pmm-managed
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_POSTGRES=1
-      # - PERCONA_TEST_POSTGRES_SSL_MODE=require
-      # - PERCONA_TEST_POSTGRES_SSL_CA_PATH=/certs/root.crt
-      # - PERCONA_TEST_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
-      # - PERCONA_TEST_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
+      # - PMM_DEV_PERCONA_PLATFORM_ADDRESS=https://check.localhost
+      # - PMM_DEV_PERCONA_PLATFORM_INSECURE=1
+      # - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=<public key>
+      # - PMM_DEV_TELEMETRY_INTERVAL=10s
+      # - PMM_DEV_TELEMETRY_RETRY_BACKOFF=10s
+      # - PMM_DEV_TELEMETRY_DISABLE_START_DELAY=1
+      - PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
+      - PMM_CLICKHOUSE_DATABASE=pmm
+      - PMM_CLICKHOUSE_BLOCK_SIZE=10000
+      - PMM_CLICKHOUSE_POOL_SIZE=2
+      - PMM_DISABLE_BUILTIN_CLICKHOUSE=1
+      - PMM_POSTGRES_ADDR=pg:5432
+      - PMM_POSTGRES_USERNAME=pmm-managed
+      - PMM_POSTGRES_DBPASSWORD=pmm-managed
+      - PMM_DISABLE_BUILTIN_POSTGRES=1
+      # - PMM_POSTGRES_SSL_MODE=require
+      # - PMM_POSTGRES_SSL_CA_PATH=/certs/root.crt
+      # - PMM_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
+      # - PMM_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
       - GF_DATABASE_URL=postgres://grafana:grafana@pg:5432/grafana
       # - GF_DATABASE_SSL_MODE=require
       # - PMM_DEBUG=1
@@ -372,25 +371,25 @@ services:
       - REVIEWDOG_GITHUB_API_TOKEN=${REVIEWDOG_GITHUB_API_TOKEN}
       - AWS_ACCESS_KEY=${AWS_ACCESS_KEY}
       - AWS_SECRET_KEY=${AWS_SECRET_KEY}
-      # - PERCONA_TEST_PLATFORM_ADDRESS=https://check.localhost
-      # - PERCONA_TEST_PLATFORM_INSECURE=1
-      # - PERCONA_TEST_PLATFORM_PUBLIC_KEY=<public key>
-      # - PERCONA_TEST_TELEMETRY_INTERVAL=10s
-      # - PERCONA_TEST_TELEMETRY_RETRY_BACKOFF=10s
-      # - PERCONA_TEST_TELEMETRY_DISABLE_START_DELAY=1
-      - PERCONA_TEST_PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
-      - PERCONA_TEST_PMM_CLICKHOUSE_DATABASE=pmm
-      - PERCONA_TEST_PMM_CLICKHOUSE_BLOCK_SIZE=10000
-      - PERCONA_TEST_PMM_CLICKHOUSE_POOL_SIZE=2
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_CLICKHOUSE=1
-      - PERCONA_TEST_POSTGRES_ADDR=pg:5432
-      - PERCONA_TEST_POSTGRES_USERNAME=pmm-managed
-      - PERCONA_TEST_POSTGRES_DBPASSWORD=pmm-managed
-      - PERCONA_TEST_PMM_DISABLE_BUILTIN_POSTGRES=1
-      # - PERCONA_TEST_POSTGRES_SSL_MODE=require
-      # - PERCONA_TEST_POSTGRES_SSL_CA_PATH=/certs/root.crt
-      # - PERCONA_TEST_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
-      # - PERCONA_TEST_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
+      # - PMM_DEV_PERCONA_PLATFORM_ADDRESS=https://check.localhost
+      # - PMM_DEV_PERCONA_PLATFORM_INSECURE=1
+      # - PMM_DEV_PERCONA_PLATFORM_PUBLIC_KEY=<public key>
+      # - PMM_DEV_TELEMETRY_INTERVAL=10s
+      # - PMM_DEV_TELEMETRY_RETRY_BACKOFF=10s
+      # - PMM_DEV_TELEMETRY_DISABLE_START_DELAY=1
+      - PMM_CLICKHOUSE_ADDR=${CH_HOSTNAME:-ch}:9000
+      - PMM_CLICKHOUSE_DATABASE=pmm
+      - PMM_CLICKHOUSE_BLOCK_SIZE=10000
+      - PMM_CLICKHOUSE_POOL_SIZE=2
+      - PMM_DISABLE_BUILTIN_CLICKHOUSE=1
+      - PMM_POSTGRES_ADDR=pg:5432
+      - PMM_POSTGRES_USERNAME=pmm-managed
+      - PMM_POSTGRES_DBPASSWORD=pmm-managed
+      - PMM_DISABLE_BUILTIN_POSTGRES=1
+      # - PMM_POSTGRES_SSL_MODE=require
+      # - PMM_POSTGRES_SSL_CA_PATH=/certs/root.crt
+      # - PMM_POSTGRES_SSL_KEY_PATH=/certs/pmm-managed.key
+      # - PMM_POSTGRES_SSL_CERT_PATH=/certs/pmm-managed.crt
       - GF_DATABASE_URL=postgres://grafana:grafana@pg:5432/grafana
       # - GF_DATABASE_SSL_MODE=require
       # - PMM_DEBUG=1

docs/process/best_practices.md

@@ -26,6 +26,14 @@
   - Supervisor-level dependencies between services are not strictly required (due to restarts everything will work eventually), but are nice to have: they help avoid scarry errors in logs.
   - The big exception is exporters: we should follow practices established by the Prometheus community and not fail if the system under monitoring is not available. Other startup errors, like a missing certificate file, should still terminate the exporter.
 
+### Environment Variables
+For consistency, environment variables should keep to the following suggestions:
+- Use the `PMM_DEV_` prefix for any environment variable that is to be used for *only* development/test purposes i.e., 
+variables that are not meant for end-users in any circumstance e.g., `PMM_DEV_PERCONA_PLATFORM_ADDRESS`
+- Use the `PMM_TEST_` prefix for any variable that is not part of PMM GA functionality.
+- Use the `PMM_` prefix for variables that is part of PMM GA functionality.
+- Use a sub-prefix if a number of env vars relate to one component, e.g., `PMM_TEST_HA_`
+- The use of PERCONA_ prefix is prohibited (exception: PMM_PERCONA_PLATFORM_URL, since it's part of a proper name, not a prefix)
 ## Code style
 
 - `gofumpt -s ` (note the `-s`)