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4271402e0d
...
435cab01c8
1 changed files with 23 additions and 40 deletions
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@ -311,13 +311,17 @@ function convertRedisOptions(options: RedisOptionsSource, host: string): RedisOp
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this function allows overriding any string-valued config option with
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a sensible-named environment variable
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e.g. `MK_CONFIG_MEILISEARCH_APIKEY` sets `config.meilisearch.apikey`
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e.g. `MK_CONFIG_MEILISEARCH_APIKEY` overrides `config.meilisearch.apikey`
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the option's containing object must be present in the config *file*,
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so in the example above, `config.meilisearch` must be set to
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something in the file, it can't be completely commented out.
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you can also override a single `dbSlave` value,
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e.g. `MK_CONFIG_DBSLAVES_1_PASS` sets the password for the 2nd
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database replica (the first one would be
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`MK_CONFIG_DBSLAVES_0_PASS`); in this case, `config.dbSlaves` must
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be set to an array of the right size already in the file
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`MK_CONFIG_DBSLAVES_0_PASS`); again, `config.dbSlaves` must be set
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to an array of the right size already in the file
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values can be read from files, too: setting `MK_DB_PASS_FILE` to
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`/some/file` would set the main database password to the contents of
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@ -328,10 +332,10 @@ function applyEnvOverrides(config: Source) {
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// the given steps, building the env variable name
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function _apply_top(steps: (string | number)[]) {
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_walk('', [], steps);
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_apply_inner(config, '', steps);
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}
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function _walk(name: string, path: (string | number)[], steps: (string | number)[]) {
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function _apply_inner(thisConfig: any, name: string, steps: (string | number)[]) {
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// are there more steps after this one? recurse
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if (steps.length > 1) {
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const thisStep = steps.shift();
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@ -340,10 +344,10 @@ function applyEnvOverrides(config: Source) {
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// if a step is not a simple value, iterate through it
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if (typeof thisStep === 'object') {
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for (const thisOneStep of thisStep) {
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_descend(name, path, thisOneStep, steps);
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_descend(thisConfig, name, thisOneStep, steps);
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}
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} else {
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_descend(name, path, thisStep, steps);
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_descend(thisConfig, name, thisStep, steps);
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}
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// the actual override has happened at the bottom of the
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@ -356,10 +360,10 @@ function applyEnvOverrides(config: Source) {
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if (typeof lastStep === 'object') {
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for (const lastOneStep of lastStep) {
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_lastBit(name, path, lastOneStep);
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_lastBit(thisConfig, name, lastOneStep);
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}
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} else {
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_lastBit(name, path, lastStep);
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_lastBit(thisConfig, name, lastStep);
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}
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}
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@ -368,50 +372,29 @@ function applyEnvOverrides(config: Source) {
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}
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// this recurses down, bailing out if there's no config to override
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function _descend(name: string, path: (string | number)[], thisStep: string | number, steps: (string | number)[]) {
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function _descend(thisConfig: any, name: string, thisStep: string | number, steps: (string | number)[]) {
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name = `${name}${_step2name(thisStep)}_`;
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path = [ ...path, thisStep ];
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_walk(name, path, steps);
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thisConfig = thisConfig[thisStep];
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if (!thisConfig) return;
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_apply_inner(thisConfig, name, steps);
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}
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// this is the bottom of the recursion: look at the environment and
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// set the value
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function _lastBit(name: string, path: (string | number)[], lastStep: string | number) {
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name = `MK_CONFIG_${name}${_step2name(lastStep)}`;
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function _lastBit(thisConfig: any, name: string, lastStep: string | number) {
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name = `${name}${_step2name(lastStep)}`;
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const val = process.env[name];
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const val = process.env[`MK_CONFIG_${name}`];
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if (val != null && val != undefined) {
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_assign(path, lastStep, val);
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thisConfig[lastStep] = val;
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}
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const file = process.env[`${name}_FILE`];
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const file = process.env[`MK_CONFIG_${name}_FILE`];
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if (file) {
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_assign(path, lastStep, fs.readFileSync(file, 'utf-8').trim());
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thisConfig[lastStep] = fs.readFileSync(file, 'utf-8').trim();
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}
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}
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const alwaysStrings = { 'chmodSocket': 1 };
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function _assign(path: (string | number)[], lastStep: string | number, value: string) {
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let thisConfig = config;
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for (const step of path) {
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if (!thisConfig[step]) {
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thisConfig[step] = {};
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}
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thisConfig = thisConfig[step];
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}
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if (!alwaysStrings[lastStep]) {
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if (value.match(/^[0-9]+$/)) {
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value = parseInt(value);
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} else if (value.match(/^(true|false)$/i)) {
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value = !!value.match(/^true$/i);
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}
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}
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thisConfig[lastStep] = value;
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}
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// these are all the settings that can be overridden
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_apply_top([['url', 'port', 'socket', 'chmodSocket', 'disableHsts']]);
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