Allow more timezone formats

jib-gradle-plugin/CHANGELOG.md

@@ -7,11 +7,14 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
+- `jib.container.creationTime` now accepts more timezone formats:`+HHmm`. This allows for easier configuration of creationTime by external systems. ([#2320](https://github.com/GoogleContainerTools/jib/issues/2320))
+
 ### Fixed
 
 ## 2.1.0
 
 ### Added
+
 - Additionally reads credentials from `~/.docker/.dockerconfigjson` and legacy Docker config (`~/.docker/.dockercfg`). Also searches for `$HOME/.docker/*` (in addition to current `System.get("user.home")/.docker/*`). This may help retrieve credentials, for example, on Kubernetes. ([#2260](https://github.com/GoogleContainerTools/jib/issues/2260))
 - New skaffold configuration options that modify how jib's build config is presented to skaffold ([#2292](https://github.com/GoogleContainerTools/jib/pull/2292)):
     - `jib.skaffold.watch.buildIncludes`: a list of build files to watch

jib-maven-plugin/CHANGELOG.md

@@ -7,11 +7,14 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
+- `<container><creationTime>` now accepts more timezone formats:`+HHmm`. This allows for easier configuration of creationTime by external systems. ([#2320](https://github.com/GoogleContainerTools/jib/issues/2320))
+
 ### Fixed
 
 ## 2.1.0
 
 ### Added
+
 - Additionally reads credentials from `~/.docker/.dockerconfigjson` and legacy Docker config (`~/.docker/.dockercfg`). Also searches for `$HOME/.docker/*` (in addition to current `System.get("user.home")/.docker/*`). This may help retrieve credentials, for example, on Kubernetes. ([#2260](https://github.com/GoogleContainerTools/jib/issues/2260))
 - New skaffold configuration options that modify how jib's build config is presented to skaffold ([#2292](https://github.com/GoogleContainerTools/jib/pull/2292)):
     - `<watch><buildIncludes>`: a list of build files to watch

jib-plugins-common/src/main/java/com/google/cloud/tools/jib/plugins/common/PluginConfigurationProcessor.java

@@ -44,6 +44,7 @@
 import java.nio.file.Paths;
 import java.time.Instant;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
 import java.time.format.DateTimeParseException;
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -730,9 +731,16 @@ static Instant getCreationTime(String configuredCreationTime, ProjectProperties
           return Instant.now();
 
         default:
-          return DateTimeFormatter.ISO_DATE_TIME.parse(configuredCreationTime, Instant::from);
+          DateTimeFormatter formatter =
+              new DateTimeFormatterBuilder()
+                  .append(DateTimeFormatter.ISO_DATE_TIME) // parses isoStrict
+                  // add ability to parse with no ":" in tz
+                  .optionalStart()
+                  .appendOffset("+HHmm", "+0000")
+                  .optionalEnd()
+                  .toFormatter();
+          return formatter.parse(configuredCreationTime, Instant::from);
       }
-
     } catch (DateTimeParseException ex) {
       throw new InvalidCreationTimeException(configuredCreationTime, configuredCreationTime, ex);
     }

jib-plugins-common/src/test/java/com/google/cloud/tools/jib/plugins/common/PluginConfigurationProcessorTest.java

@@ -30,6 +30,7 @@
 import com.google.cloud.tools.jib.api.RegistryImage;
 import com.google.cloud.tools.jib.configuration.BuildContext;
 import com.google.cloud.tools.jib.configuration.ImageConfiguration;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.Resources;
@@ -908,11 +909,52 @@ public void testGetCreationTime_useCurrentTimestamp() throws InvalidCreationTime
 
   @Test
   public void testGetCreationTime_isoDateTimeValue() throws InvalidCreationTimeException {
-    Instant time =
-        PluginConfigurationProcessor.getCreationTime(
-            "2011-12-03T10:15:30+09:00", projectProperties);
     Instant expected = DateTimeFormatter.ISO_DATE_TIME.parse("2011-12-03T01:15:30Z", Instant::from);
-    Assert.assertEquals(expected, time);
+    List<String> validTimeStamps =
+        ImmutableList.of(
+            "2011-12-03T10:15:30+09:00",
+            "2011-12-03T10:15:30+09:00[Asia/Tokyo]",
+            "2011-12-02T16:15:30-09:00",
+            "2011-12-03T10:15:30+0900",
+            "2011-12-02T16:15:30-0900",
+            "2011-12-03T10:15:30+09",
+            "2011-12-02T16:15:30-09",
+            "2011-12-03T01:15:30Z");
+    for (String timeString : validTimeStamps) {
+      Instant time = PluginConfigurationProcessor.getCreationTime(timeString, projectProperties);
+      Assert.assertEquals("for " + timeString, expected, time);
+    }
+  }
+
+  @Test
+  public void testGetCreationTime_isoDateTimeValueTimeZoneRegionOnlyAllowedForMostStrict8601Mode() {
+    List<String> invalidTimeStamps =
+        ImmutableList.of(
+            "2011-12-03T01:15:30+0900[Asia/Tokyo]", "2011-12-03T01:15:30+09[Asia/Tokyo]");
+    for (String timeString : invalidTimeStamps) {
+      try {
+        PluginConfigurationProcessor.getCreationTime(timeString, projectProperties);
+        // this is the expected behavior, not specifically designed like this for any reason, feel
+        // free to change this behavior and update the test
+        Assert.fail(
+            "creationTime should fail if region specified when zone not in HH:MM mode - "
+                + timeString);
+      } catch (InvalidCreationTimeException ex) {
+        // pass
+      }
+    }
+  }
+
+  @Test
+  public void testGetCreationTime_isoDateTimeValueRequiresTimeZone() {
+    try {
+      PluginConfigurationProcessor.getCreationTime("2011-12-03T01:15:30", projectProperties);
+      // this is the expected behavior, not specifically designed like this for any reason, feel
+      // free to change this behavior and update the test
+      Assert.fail("getCreationTime should fail if timezone not specified");
+    } catch (InvalidCreationTimeException ex) {
+      // pass
+    }
   }
 
   @Test