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Last Updated: 2022-11-02 20:25:30
the personal food nutrition journal
License: Mozilla Public License 2.0
Languages: PHP, Blade, Dockerfile, Shell, Procfile
Track nutritional information about foods and recipes, set goals, and record a food journal to help along the way. Kcal is a personal system that focuses on direct control of inputs (as opposed to unwieldy user generated datasets) and a minimal, easy to use recipe presentation for preparing meals.
Kcal's primary functionality includes three main content categories -- journal, recipes, and foods -- and two per-user configurations -- goals and meals. Users can customize meals (up to eight per day) for meal planning, set multiple goals for tracking calories and macros (fat, carbohydrates, protein), enter food data with calories and macros, create recipes based on foods and other recipes, and record foods and recipes in a journal tracked against goals.
Foods are shared between all users.
Foods are the basis for recipes and calorie and macro calculations throughout the app. They can be added directly to journal entries and included in recipes that roll-up nutritional data per serving.
Food servings can be recorded using U.S. measure units (teaspoon, tablespoon, cup) and use a weight basis of grams. These units and weights are commonly used in the United States and required by law for most packaged foods. Kcal tries to make data entry as easy as possible by organization field order and units to match nutritional label configurations.
Food data does not (currently) make use of any API or service for retrieving information about food. While this may change in the future, there are a couple of reason this feature has been left out of kcal:
There is a very large volume of data in most food databases such that organizing, categorizing, and searching for the right food can be daunting.
Food databases that allow and include input from large groups of users can be inaccurate and counter-productive for users with calorie and/or macro goals.
Kcal's self-hostable nature is in part for privacy-conscious users so limiting interactions with third-party services is desirable (though adding APIs as an optional enhancement is not a major concern here).
Foods are taggable and tags can be used to filter and search for foods quickly.
Recipes are shared between all users. They (currently) cannot be shared externally, but a feature enhancement to support optional, per-recipe public link creation is planned.
Configurable recipe metadata includes servings, weight, volume, timing, image, description, ingredients, and steps.
The recipe view is meant to be as uncluttered as possible, to support browser "reader mode", and to still provide nutritional metadata at a glance.
Recipes are taggable and tags can be used to filter and search for recipes quickly.
Journal entries are private. Each user has and can only see their own entries.
Planning and tracking calories and macros is the primary focus of journal entries. The journal section aggregates this information by day and by meal.
Recipes and foods can be added to journal entries in various quantities and configurations (depending on the associated serving data). Manual entries can also be used to record data for foods and recipes not in the kcal's database.
Journal entries are not editable. The calorie and macro information for each entry is recorded with the entry. This allows for recoding and maintaining journal entry data even as foods and recipes are updated.
Goals are private. Each user can create and see only their own goals.
Goals reflect daily calories and macros and are therefore closely related to journal entries.
Goals can be configured as "default" for specific days of the week but can also be overridden for individual days in the journal section.
There is no limit to the number of goals a user can create.
Meals are private. Each user can rename, arrange, and enable or disabled their own meals.
Meals are used to aggregate data within a day in the journal section and can be used for both meal planning and goal tracking.
There is a pre-configured maximum of eight meals for each user.
Kcal's primary focus is tracking nutrition (recipe management is the most important secondary focus), so it should be a useful tool for anyone looking to implement a specific diet. Below are some (very) broad diet types and information about how kcal can be helpful. Kcal intentionally does not provide any specific dieting guidance or recommend any particular diet or type of diet. Individual users are expected to research and make their own plans and goals -- kcal is here to help record and organize the data.
Hypocaloric diets use calorie restriction for weight loss or other dietary management. Kcal users can create low calorie (relative to personal regular calorie) intake goals and use the detailed nutritional data of food and recipes and to plan meals and record caloric intake using journal entries.
Hypercaloric diets are used for weight gain and can be especially useful for building muscle in weight training. Kcal users can create calorie goals that exceed expected calorie burn on a day-to-day basis. For the weight training example users can create a goal for training days and separate, lower goal for rest days. The goals can be automated based on the day of the week and journal entries can be used to ensure that a proper macro balance is maintained. More meals may also be helpful on a hypercaloric diet and kcal supports up to eight meals per day.
Diets that exclude animal-based products may require special attention to ensure a proper balance of nutrients (particularly when transitioning). Kcal's goals and food nutritional data can help to make sure that appropriate fat, carbohydrate, and protein needs are met.
Any diet that focuses on lowering a particular nutrient can be trackable with kcal. In addition to the macronutrients (fat, carbohydrates, and protein) foods support cholesterol and sodium data as well. Support for other common nutrients like saturated fats, trans fats, fiber, sugar, etc. may also be available in future iterations.
Docker is the recommended deployment method. See kcal-app/kcal-docker.
General requirements for any deployment are:
bcmath
, curl
, gd
, intl
,
mbstring
, xml
, zip
.Optional but useful additions are:
There is a Dockerfile
and automated build process to create builds
at kcalapp/kcal on Docker Hub.
See the kcal-app/kcal-docker repository
for a Docker Compose based template and instructions.
The default username and password for a Heroku deployment is kcal
/kcal
.
For a manual deploy using Heroku CLI, execute the following after initial deployment:
heroku run php artisan migrate
heroku run php artisan user:add
heroku config:set APP_KEY=$(php artisan --no-ansi key:generate --show)
Heroku uses an ephemeral disk. In order to maintain recipe and/or user images between app restarts AWS can be used. See Media Storage - AWS S3 for additional guidance.
See the Search section for information about supported drivers. Additional environment variable configuration is necessary when using any search driver other than the default ("null").
The Heroku Redis add-on can be added to the app and will work without any configuration changes. It is left out of the default build only because it takes a very long time to provision.
This deployment process has been tested with an Ubuntu 20.04 LTS instance with 2GB of memory which should be enough to host the app for a few regular users. The memory is primarily needed for Elasticsearch -- See the Search section for other options if lower memory support is needed.
Add PHP 8.x repository.
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:ondrej/php
Add Elasticsearch 7.x repository.
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-7.x.list
Update available packages.
sudo apt-get update
Install dependencies.
sudo apt-get install elasticsearch mysql-server-8.0 nginx-full php8.0 php8.0-bcmath php8.0-cli php8.0-curl php8.0-gd php8.0-intl php8.0-mbstring php8.0-mysql php8.0-redis php8.0-xml php8.0-zip redis php8.0-fpm
Start Elasticsearch and configure to run at start up.
sudo systemctl start elasticsearch
sudo systemctl enable elasticsearch
Install Composer.
🚨 This command runs code from a remote location as root. See Download Composer for alternative install options.
curl -s https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin/ --filename=composer
Clone the app repository.
cd /var/www
sudo mkdir kcal
sudo chown $USER:`id -gn $USER` kcal
cd kcal
git clone https://github.com/kcal-app/kcal.git .
Configure nginx to serve the app public files.
sudo vim /etc/nginx/conf.d/kcal.conf
<edit config, see example below>
sudo service nginx restart
Example config:
server {
listen 80;
server_name kcal.example.com;
root /var/www/kcal/public;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-Content-Type-Options "nosniff";
index index.php;
charset utf-8;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt { access_log off; log_not_found off; }
error_page 404 /index.php;
location ~ \.php$ {
fastcgi_pass unix:/var/run/php/php8.0-fpm.sock;
fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /\.(?!well-known).* {
deny all;
}
}
Create database user.
sudo mysql -u root
CREATE DATABASE `kcal`;
CREATE USER 'kcal'@'localhost' IDENTIFIED BY RANDOM PASSWORD;
GRANT ALL ON `kcal`.* TO 'kcal'@'localhost';
FLUSH PRIVILEGES;
🔒 Save the generated password output by the CREATE USER
statement.
Install dependencies and generate an app key to use in the next step.
composer install --optimize-autoloader --no-dev
php artisan --no-ansi key:generate --show
Copy environment config file and adjust as desired.
cp .env.example .env
At a minimum:
APP_KEY
to the value generated in the previous step.APP_URL
to match the host configured in nginx configuration.DATABASE_
values to the configured credentials.Run initial app installation/bootstrap commands.
php artisan migrate
php artisan elastic:migrate
php artisan config:cache
php artisan route:cache
php artisan view:cache
php artisan user:add --admin
Allow web server to access required directories.
sudo chown -R $USER:www-data {storage,public}
sudo chmod g+s {storage,public}
Visit the APP_URL
and log in!
Recipes and users can have associated media (images) that by default are stored
on a local disk under the path {app}/public/media
. If a local disk solution is
not feasible, an AWS S3 bucket can be used instead.
Use the general guidance below to create an AWS S3 bucket and IAM user for media storage in AWS S3.
Create a bucket that allows objects to be configured with public access.
Create an IAM user with access to the bucket.
Use this example policy to grant necessary permissions to a specific bucket:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "VisualEditor0",
"Effect": "Allow",
"Action": [
"s3:GetBucketPublicAccessBlock",
"s3:GetBucketPolicyStatus",
"s3:GetAccountPublicAccessBlock",
"s3:ListAllMyBuckets",
"s3:GetBucketAcl",
"s3:GetBucketLocation"
],
"Resource": "*"
},
{
"Sid": "VisualEditor1",
"Effect": "Allow",
"Action": "s3:ListBucket",
"Resource": "arn:aws:s3:::REPLACE_WITH_S3_BUCKET_NAME"
},
{
"Sid": "VisualEditor2",
"Effect": "Allow",
"Action": ["s3:*Object", "s3:*ObjectAcl*"],
"Resource": "arn:aws:s3:::REPLACE_WITH_S3_BUCKET_NAME/*"
}
]
}
Set necessary environment variables (via .env
or some other mechanism).
MEDIA_DISK=s3-public
AWS_ACCESS_KEY_ID=REPLACE_WITH_IAM_KEY
AWS_SECRET_ACCESS_KEY=REPLACE_WITH_IAM_SECRET
AWS_DEFAULT_REGION=REPLACE_WITH_S3_BUCKET_NAME
AWS_BUCKET=REPLACE_WITH_S3_BUCKET_REGION
The "ingredient" (food or recipe) search for journal entries and recipe ingredients
supports three different backends using the SCOUT_DRIVER
environment variable.
In all cases, always ensure that the SCOUT_DRIVER
environment variable is only
set once in kcal's .env
file.
Currently, the food and recipe list searches do not take advantage of these search drivers. Support for those searches will be added if the Laravel JSON:API adds support for Scout (see: laravel-json-api/laravel#32).
algolia
)Create and/or log in to an Algolia account.
Create an application for kcal.
Navigate to the application's "API Keys" section.
Using the Application ID and Admin API Key values, update kcal's .env
file:
SCOUT_DRIVER=algolia
ALGOLIA_APP_ID=<APPLICATION_ID>
ALGOLIA_SECRET=<ADMIN_API_KEY>
elastic
)Determine the ElasticSearch service host and port.
Update kcal's .env
file.
SCOUT_DRIVER=elastic
ELASTIC_HOST=<HOST:PORT>
ELASTIC_PORT=<PORT>
Note: The ELASTIC_PORT
variable is a convenience option specifically for
Docker Compose configurations and is not strictly required.
Run Elastic's migrations.
php artisan elastic:migrate
null
)The fallback driver is a simple WHERE ... LIKE
clause search on a couple of key
fields. Results will not be ordered by relevance, and some fields will not be
searched (e.g. the tags fields). Using one of the other options is highly recommended.
Set SCOUT_DRIVER=null
in kcal's .env
file to use the fallback driver.
Clone the repository.
git clone https://github.com/kcal-app/kcal.git
cd kcal
Install development dependencies.
composer install
Create a local .env
file.
cp .env.local.example .env
Generate an app key.
php artisan key:generate
Verify that the APP_KEY
variable has been set in .env
. If has not, run
php artisan key:generate --show
and copy the key and append it to the
APP_KEY=
line manually.
Run it! ⛵
vendor/bin/sail up
(On first run) Run migrations.
vendor/bin/sail artisan migrate
vendor/bin/sail artisan elastic:migrate
(On first run) Seed the database.
vendor/bin/sail artisan db:seed
The default username and password is kcal
/ kcal
.
Navigate to http://127.0.0.1:8080 to log in!
Create a docker-compose.override.yml
file to override any of the default settings
provided for this environment.
dev:cache-clear
Executes the various cache clearing artisan commands:
cache:clear
config:clear
route:clear
view:clear
dev:reset
Resets and seeds the database by executing the following artisan commands:
db:wipe
migrate
db:seed
Ensure that Sail is running (primarily to provide ElasticSearch):
vendor/bin/sail up -d
Execute tests.
vendor/bin/sail artisan dev:cache-clear
vendor/bin/sail artisan test --parallel --recreate-databases