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Merge pull request #4384 from arjunajesh/issue#1926

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certificates can be passed through env vars
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Michael Eischer 2023-07-08 07:46:31 +00:00 committed by GitHub
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3 changed files with 14 additions and 2 deletions
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8
changelog/unreleased/issue-1926 Normal file
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@ -0,0 +1,8 @@
Enhancement: Certificates can be passed through environment variables
Restic will now read the paths to the certificates from the environment
variables `RESTIC_CACERT` or `RESTIC_TLS_CLIENT_CERT` if `--cacert` or
`--tls-client-cert` are not specified.
https://github.com/restic/restic/issues/1926
https://github.com/restic/restic/pull/4384

6
cmd/restic/global.go
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@ -134,8 +134,8 @@ func init() {
f.BoolVarP(&globalOptions.JSON, "json", "", false, "set output mode to JSON for commands that support it")
f.StringVar(&globalOptions.CacheDir, "cache-dir", "", "set the cache `directory`. (default: use system default cache directory)")
f.BoolVar(&globalOptions.NoCache, "no-cache", false, "do not use a local cache")
f.StringSliceVar(&globalOptions.RootCertFilenames, "cacert", nil, "`file` to load root certificates from (default: use system certificates)")
f.StringVar(&globalOptions.TLSClientCertKeyFilename, "tls-client-cert", "", "path to a `file` containing PEM encoded TLS client certificate and private key")
f.StringSliceVar(&globalOptions.RootCertFilenames, "cacert", nil, "`file` to load root certificates from (default: use system certificates or $RESTIC_CACERT)")
f.StringVar(&globalOptions.TLSClientCertKeyFilename, "tls-client-cert", "", "path to a `file` containing PEM encoded TLS client certificate and private key (default: $RESTIC_TLS_CLIENT_CERT)")
f.BoolVar(&globalOptions.InsecureTLS, "insecure-tls", false, "skip TLS certificate verification when connecting to the repository (insecure)")
f.BoolVar(&globalOptions.CleanupCache, "cleanup-cache", false, "auto remove old cache directories")
f.Var(&globalOptions.Compression, "compression", "compression mode (only available for repository format version 2), one of (auto|off|max) (default: $RESTIC_COMPRESSION)")
@ -151,6 +151,8 @@ func init() {
globalOptions.PasswordFile = os.Getenv("RESTIC_PASSWORD_FILE")
globalOptions.KeyHint = os.Getenv("RESTIC_KEY_HINT")
globalOptions.PasswordCommand = os.Getenv("RESTIC_PASSWORD_COMMAND")
globalOptions.RootCertFilenames = strings.Split(os.Getenv("RESTIC_CACERT"), ",")
globalOptions.TLSClientCertKeyFilename = os.Getenv("RESTIC_TLS_CLIENT_CERT")
comp := os.Getenv("RESTIC_COMPRESSION")
if comp != "" {
// ignore error as there's no good way to handle it

2
doc/040_backup.rst
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@ -567,6 +567,8 @@ environment variables. The following lists these environment variables:
RESTIC_PASSWORD The actual password for the repository
RESTIC_PASSWORD_COMMAND Command printing the password for the repository to stdout
RESTIC_KEY_HINT ID of key to try decrypting first, before other keys
RESTIC_CACERT Location(s) of certificate file(s), comma separated if multiple (replaces --cacert)
RESTIC_TLS_CLIENT_CERT Location of TLS client certificate and private key (replaces --tls-client-cert)
RESTIC_CACHE_DIR Location of the cache directory
RESTIC_COMPRESSION Compression mode (only available for repository format version 2)
RESTIC_PROGRESS_FPS Frames per second by which the progress bar is updated