#13 Adjusted the logic to check whether a container already exists. Now it no longer checks the image name + version, just the container name.

Logged the after-verification-wait property in the boot sequence.

Updated the docs.

Author: robert-bor

README.md

@@ -94,9 +94,11 @@ docker:
     image-version: 9.6
     force-clean: true
     container-name: postgression2
-    port: 5433
+    port: 5434
 ```
 
+Be sure to point your datasource url to the same port.
+
 Note that the force-clean flag is useful for tests. There is no reason to keep the container in that case and you might as well remove it, when another version is found.
 
 Since the Postgres containers will be run on different identifiers and ports, you can run them in parallel.
@@ -159,6 +161,24 @@ When a failure occurs, the error log will be read and logged. If the container s
 
 If the container does not start up, the Spring Boot startup sequence will be terminated.
 
+## Slow system?
+
+If you have a slow system, your Spring Boot may be faster than the time when Postgres is really ready (ie, this is not the same as when Docker tells it is ready). The result is the following error:
+
+```
+Caused by: org.postgresql.util.PSQLException: FATAL: the database system is starting up
+```
+
+This can be remedied by applying a post startup verification wait time (in milliseconds) to your application:
+
+```yaml
+docker:
+  postgres:
+    afterVerificationWait: 2000
+```
+
+In this example, it will wait for an extra 2 seconds.
+
 # Docker Postgres in action
 
 When docker-postgres starts, your log will show this:

src/main/java/nl/_42/boot/docker/postgres/DockerContainerAvailableCheck.java

@@ -12,20 +12,18 @@ public class DockerContainerAvailableCheck extends AbstractDockerAvailableCheck
     private final static String COMMAND = "docker ps";
 
     private final String containerName;
-    private final String imageNameAndVersion;
 
     public DockerContainerAvailableCheck(DockerPostgresProperties properties) {
         super(COMMAND, properties);
         this.containerName = properties.getContainerName();
-        this.imageNameAndVersion = properties.getImageName() + ":" + properties.getImageVersion();
     }
 
     public boolean hasContainer() throws IOException {
-        if (hasValues(new ExpectedValue(1, imageNameAndVersion), new ExpectedValue(6, containerName))) {
-            LOGGER.info("| Container [" + containerName + " for " + imageNameAndVersion + "] exists");
+        if (hasValues(new ExpectedValue(6, containerName))) {
+            LOGGER.info("| Container [" + containerName + "] exists");
             return true;
         }
-        LOGGER.info("| Container [" + containerName + " for " + imageNameAndVersion + "] not found; no force remove needed");
+        LOGGER.info("| Container [" + containerName + "] not found; no force remove needed");
         return false;
     }
 

src/main/java/nl/_42/boot/docker/postgres/DockerPostgresBootSequence.java

@@ -26,6 +26,7 @@ public DockerPostgresContainer execute() throws IOException, InterruptedExceptio
         LOGGER.info("| * Port: " + properties.getPort());
         LOGGER.info("| * Password: " + properties.getPassword());
         LOGGER.info("| * Startup Verification Text: [" + properties.getStartupVerificationText() + "]");
+        LOGGER.info("| * After verification wait: " + properties.getAfterVerificationWait() + "ms");
         LOGGER.info("| * Docker command: [" + properties.getDockerCommand() + "]");
         LOGGER.info("| * Custom variables (" + properties.getCustomVariables().size() + ")");
         for (String key : properties.getCustomVariables().keySet()) {