Add support for setting timezone

CHANGELOG.md

@@ -11,6 +11,7 @@ Please refer to the SaltStack [Release Notes](https://docs.saltstack.com/en/deve
 - Add `PyGit2` support
 - Expose `/home/salt/data/logs`
 - Run `salt-master` as `salt` user
+- Add support for setting timezone
 
 **2018.3.2**
 

LICENSE

@@ -19,4 +19,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
-

README.md

@@ -161,7 +161,7 @@ gitfs_privkey: /home/salt/data/keys/gitfs/gitfs_ssh
 gitfs_pubkey: /home/salt/data/keys/gitfs/gitfs_ssh.pub
 ```
 
-**Important Note** 
+**Important Note**
 
 If you get the following error while using `gitfs` with `pygit2`
 
@@ -178,7 +178,9 @@ Please refer the docker run command options for the `--env-file` flag where you
 Below is the list of available options that can be used to customize your SaltStack master installation.
 
 | Parameter | Description |
-|-----------|-------------|
+|:----------|:------------|
+| `DEBUG` | Set this to `true` to enable entrypoint debugging. |
+| `TIMEZONE` | Set the container timezone. Defaults to `UTC`. Values are expected to be in Canonical format. Example: `Europe/Madrid`. See the list of [acceptable values](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones). |
 | `SALT_LOG_LEVEL` | The level of messages to send to the console. One of 'garbage', 'trace', 'debug', info', 'warning', 'error', 'critical'. Default: `warning` |
 | `SALT_LEVEL_LOGFILE` | The level of messages to send to the log file. One of 'garbage', 'trace', 'debug', info', 'warning', 'error', 'critical'. Default: `warning` |
 | `SALT_MASTER_SIGN_PUBKEY` | Sign the master auth-replies with a cryptographic signature of the master's public key. Possible values: 'True' or 'False'. Default: `False` |

assets/runtime/env-defaults.sh

@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
 
+DEBUG=${DEBUG:-false}
+TIMEZONE=${TIMEZONE:-UTC}
+
 # https://docs.saltstack.com/en/latest/ref/configuration/master.html
 
 #####         Logging settings       #####

assets/runtime/functions.sh

@@ -57,11 +57,31 @@ function update_template()
   rm -f ${tmp_file}
 }
 
+# This function configures containers timezone
+function configure_timezone()
+{
+  echo "Configuring container timezone ..."
+
+  # Perform sanity check of provided timezone value
+  if [ -e /usr/share/zoneinfo/${TIMEZONE} ]; then
+    echo "Setting TimeZone -> ${TIMEZONE} ..."
+
+    # Set localtime
+    ln -snf /usr/share/zoneinfo/${TIMEZONE} /etc/localtime
+
+    # Set timezone
+    echo ${TIMEZONE} > /etc/timezone
+  else
+    echo "Timezone: '${TIMEZONE}' is not valid. Check available timezones at: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones"
+    return 1
+  fi
+}
+
 # This function generates a master_sign key pair and its signature
 function gen_signed_keys()
 {
   local key_name=${1:-master}
-  
+
   mkdir -p ${SALT_KEYS_DIR}/generated/
   GENERATED_KEYS_DIR=$(mktemp -d -p ${SALT_KEYS_DIR}/generated/ -t ${key_name}.XXXXX)
 
@@ -146,7 +166,7 @@ function configure_salt_master()
 function initialize_datadir()
 {
   echo "Configuring directories ..."
-  
+
   # This symlink simplifies paths for loading sls files
   [[ -d /srv ]] && [[ ! -L /srv ]] && rm -rf /srv
   ln -sfnv ${SALT_BASE_DIR} /srv
@@ -174,6 +194,7 @@ function initialize_system()
 {
   map_uidgid
   initialize_datadir
+  configure_timezone
   configure_salt_master
   setup_salt_keys
   setup_ssh_keys

docker-compose.yml

@@ -4,6 +4,7 @@ services:
   master:
     container_name: salt_master
     image: cdalvaro/saltstack-master:2018.3.3
+    restart: always
     volumes:
       - "./srv/:/home/salt/data/srv"
     ports:
@@ -11,6 +12,7 @@ services:
       - "4506:4506/tcp"
     environment:
       - DEBUG=false
+      - TIMEZONE=Europe/Madrid
       - USERMAP_UID=1000
       - USERMAP_GID=1000