Fix trivy setting in upgrading script

Signed-off-by: DQ <dengq@vmware.com>

make/photon/prepare/migrations/version_1_10_0/harbor.yml.jinja

@@ -254,6 +254,8 @@ external_database:
 #     username: harbor_db_username
 #     password: harbor_db_password
 #     ssl_mode: disable
+#     max_idle_conns: 2
+#     max_open_conns: 0
 #   clair:
 #     host: clair_db_host
 #     port: clair_db_port

make/photon/prepare/migrations/version_1_9_0/harbor.yml.jinja

@@ -193,6 +193,8 @@ external_database:
 #     username: harbor_db_username
 #     password: harbor_db_password
 #     ssl_mode: disable
+#     max_idle_conns: 2
+#     max_open_conns: 0
 #   clair:
 #     host: clair_db_host
 #     port: clair_db_port

make/photon/prepare/migrations/version_2_0_0/harbor.yml.jinja

@@ -134,21 +134,32 @@ clair:
 {% endif %}
 
 # Trivy configuration
+#
+# Trivy DB contains vulnerability information from NVD, Red Hat, and many other upstream vulnerability databases.
+# It is downloaded by Trivy from the GitHub release page https://github.com/aquasecurity/trivy-db/releases and cached
+# in the local file system. In addition, the database contains the update timestamp so Trivy can detect whether it
+# should download a newer version from the Internet or use the cached one. Currently, the database is updated every
+# 12 hours and published as a new release to GitHub.
 trivy:
-  # github_token The GitHub access token to download Trivy DB
+  # ignoreUnfixed The flag to display only fixed vulnerabilities
+  ignore_unfixed: false
+  # skipUpdate The flag to enable or disable Trivy DB downloads from GitHub
+  #
+  # You might want to enable this flag in test or CI/CD environments to avoid GitHub rate limiting issues.
+  # If the flag is enabled you have to download the `trivy-offline.tar.gz` archive manually, extract `trivy.db` and
+  # `metadata.json` files and mount them in the `/home/scanner/.cache/trivy/db` path.
+  skip_update: false
   #
-  # Trivy DB contains vulnerability information from NVD, Red Hat, and many other upstream vulnerability databases.
-  # It is downloaded by Trivy from the GitHub release page https://github.com/aquasecurity/trivy-db/releases and cached
-  # in the local file system (/home/scanner/.cache/trivy/db/trivy.db). In addition, the database contains the update
-  # timestamp so Trivy can detect whether it should download a newer version from the Internet or use the cached one.
-  # Currently, the database is updated every 12 hours and published as a new release to GitHub.
+  # insecure The flag to skip verifying registry certificate
+  insecure: false
+  # github_token The GitHub access token to download Trivy DB
   #
   # Anonymous downloads from GitHub are subject to the limit of 60 requests per hour. Normally such rate limit is enough
   # for production operations. If, for any reason, it's not enough, you could increase the rate limit to 5000
   # requests per hour by specifying the GitHub access token. For more details on GitHub rate limiting please consult
   # https://developer.github.com/v3/#rate-limiting
   #
-  # You can create a GitHub token by following the instuctions in
+  # You can create a GitHub token by following the instructions in
   # https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line
   #
   # github_token: xxx
@@ -281,6 +292,8 @@ external_database:
 #     username: harbor_db_username
 #     password: harbor_db_password
 #     ssl_mode: disable
+#     max_idle_conns: 2
+#     max_open_conns: 0
 #   clair:
 #     host: clair_db_host
 #     port: clair_db_port

make/photon/prepare/migrations/version_2_1_0/harbor.yml.jinja

@@ -134,24 +134,77 @@ clair:
 {% endif %}
 
 # Trivy configuration
+#
+# Trivy DB contains vulnerability information from NVD, Red Hat, and many other upstream vulnerability databases.
+# It is downloaded by Trivy from the GitHub release page https://github.com/aquasecurity/trivy-db/releases and cached
+# in the local file system. In addition, the database contains the update timestamp so Trivy can detect whether it
+# should download a newer version from the Internet or use the cached one. Currently, the database is updated every
+# 12 hours and published as a new release to GitHub.
+{% if trivy is defined %}
 trivy:
-  # github_token The GitHub access token to download Trivy DB
+  # ignoreUnfixed The flag to display only fixed vulnerabilities
+  {% if trivy.ignore_unfixed is defined %}
+  ignore_unfixed: {{ trivy.ignore_unfixed }}
+  {% else %}
+  ignore_unfixed: false
+  {% endif %}
+  # skipUpdate The flag to enable or disable Trivy DB downloads from GitHub
   #
-  # Trivy DB contains vulnerability information from NVD, Red Hat, and many other upstream vulnerability databases.
-  # It is downloaded by Trivy from the GitHub release page https://github.com/aquasecurity/trivy-db/releases and cached
-  # in the local file system (/home/scanner/.cache/trivy/db/trivy.db). In addition, the database contains the update
-  # timestamp so Trivy can detect whether it should download a newer version from the Internet or use the cached one.
-  # Currently, the database is updated every 12 hours and published as a new release to GitHub.
+  # You might want to enable this flag in test or CI/CD environments to avoid GitHub rate limiting issues.
+  # If the flag is enabled you have to manually download the `trivy.db` file and mount it in the
+  # /home/scanner/.cache/trivy/db/trivy.db path.
+  {% if trivy.skip_update is defined %}
+  skip_update: {{ trivy.skip_update }}
+  {% else %}
+  skip_update: false
+  {% endif %}
+  #
+  # insecure The flag to skip verifying registry certificate
+  {% if trivy.insecure is defined %}
+  insecure: {{ trivy.insecure }}
+  {% else %}
+  insecure: false
+  {% endif %}
+  # github_token The GitHub access token to download Trivy DB
   #
   # Anonymous downloads from GitHub are subject to the limit of 60 requests per hour. Normally such rate limit is enough
   # for production operations. If, for any reason, it's not enough, you could increase the rate limit to 5000
   # requests per hour by specifying the GitHub access token. For more details on GitHub rate limiting please consult
   # https://developer.github.com/v3/#rate-limiting
   #
-  # You can create a GitHub token by following the instuctions in
+  # You can create a GitHub token by following the instructions in
   # https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line
   #
+  {% if trivy.github_token is defined %}
+  github_token: {{ trivy.github_token }}
+  {% else %}
   # github_token: xxx
+  {% endif %}
+{% else %}
+# trivy:
+#   # ignoreUnfixed The flag to display only fixed vulnerabilities
+#   ignore_unfixed: false
+#   # skipUpdate The flag to enable or disable Trivy DB downloads from GitHub
+#   #
+#   # You might want to enable this flag in test or CI/CD environments to avoid GitHub rate limiting issues.
+#   # If the flag is enabled you have to download the `trivy-offline.tar.gz` archive manually, extract `trivy.db` and
+#   # `metadata.json` files and mount them in the `/home/scanner/.cache/trivy/db` path.
+#   skip_update: false
+#   #
+#   # insecure The flag to skip verifying registry certificate
+#   insecure: false
+#   # github_token The GitHub access token to download Trivy DB
+#   #
+#   # Anonymous downloads from GitHub are subject to the limit of 60 requests per hour. Normally such rate limit is enough
+#   # for production operations. If, for any reason, it's not enough, you could increase the rate limit to 5000
+#   # requests per hour by specifying the GitHub access token. For more details on GitHub rate limiting please consult
+#   # https://developer.github.com/v3/#rate-limiting
+#   #
+#   # You can create a GitHub token by following the instructions in
+#   # https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line
+#   #
+#   # github_token: xxx
+{% endif %}
 
 jobservice:
   # Maximum number of job workers in job service
@@ -281,6 +334,8 @@ external_database:
 #     username: harbor_db_username
 #     password: harbor_db_password
 #     ssl_mode: disable
+#     max_idle_conns: 2
+#     max_open_conns: 0
 #   clair:
 #     host: clair_db_host
 #     port: clair_db_port