Struct TemplateContext 

pub struct TemplateContext {
    pub vars: HashMap<String, Value>,
    pub matrix: HashMap<String, Value>,
    pub otel: HashMap<String, Value>,
}

Template context with vars, matrix, otel namespaces

Provides structured access to template variables:

• vars.* - User-defined variables
• matrix.* - Matrix testing parameters
• otel.* - OpenTelemetry configuration

Fields

vars: HashMap<String, Value>

User-defined variables

matrix: HashMap<String, Value>

Matrix testing parameters

otel: HashMap<String, Value>

OpenTelemetry configuration

Implementations

impl TemplateContext

pub fn new() -> Self

Create new empty template context

pub fn with_defaults() -> Self

Create context with default PRD v1.0 variables resolved via precedence

Resolves standard variables following precedence:

• svc: SERVICE_NAME → “clnrm”
• env: ENV → “ci”
• endpoint: OTEL_ENDPOINT → “http://localhost:4318”
• exporter: OTEL_TRACES_EXPORTER → “otlp”
• image: CLNRM_IMAGE → “registry/clnrm:1.0.0”
• freeze_clock: FREEZE_CLOCK → “2025-01-01T00:00:00Z”
• token: OTEL_TOKEN → “”

pub fn add_var_with_precedence( &mut self, key: &str, env_key: &str, default: &str, )

Add variable with precedence resolution

Resolves value with priority: existing var → ENV → default

Arguments

• key - Variable name
• env_key - Environment variable name
• default - Default value if not found

pub fn with_vars(self, vars: HashMap<String, Value>) -> Self

Set user-defined variables

pub fn with_matrix(self, matrix: HashMap<String, Value>) -> Self

Set matrix testing parameters

pub fn with_otel(self, otel: HashMap<String, Value>) -> Self

Set OpenTelemetry configuration

pub fn to_tera_context(&self) -> Result<Context>

Convert to Tera context for rendering

Injects variables at both top-level (no prefix) and nested [vars] for authoring. This matches PRD v1.0 requirements for no-prefix template variables.

pub fn add_var(&mut self, key: String, value: Value)

Add a variable to the vars namespace

pub fn add_matrix_param(&mut self, key: String, value: Value)

Add a matrix parameter

pub fn add_otel_config(&mut self, key: String, value: Value)

Add an OTEL configuration value

pub fn merge_user_vars(&mut self, user_vars: HashMap<String, Value>)

Merge user-provided variables with defaults

User variables take precedence over defaults (implements precedence chain)

Trait Implementations

impl Clone for TemplateContext

fn clone(&self) -> TemplateContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TemplateContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TemplateContext

fn default() -> TemplateContext

Returns the “default value” for a type.